WorldCat Identities

Orr, Robert T. (Robert Thomas) 1908-1994

Overview
Works: 47 works in 169 publications in 6 languages and 6,579 library holdings
Genres: Identification guides 
Roles: Author
Classifications: QL605, 596
Publication Timeline
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Most widely held works by Robert T Orr
Vertebrate biology by Robert T Orr( Book )

55 editions published between 1961 and 1982 in 5 languages and held by 1,697 WorldCat member libraries worldwide

Comprehensive study of vertebrates. Includes a chapter on vertebrate ancestry and enlarges the chapter on distribution by including ecological factors that govern vertebrates
Animals in migration by Robert T Orr( Book )

26 editions published between 1970 and 1984 in 5 languages and held by 953 WorldCat member libraries worldwide

Wildflowers of Western America by Robert T Orr( Book )

6 editions published between 1974 and 1981 in English and held by 840 WorldCat member libraries worldwide

The animal kingdom by Robert T Orr( Book )

6 editions published between 1965 and 1967 in English and held by 575 WorldCat member libraries worldwide

Marine mammals of California by Robert T Orr( Book )

9 editions published between 1972 and 1989 in English and held by 519 WorldCat member libraries worldwide

Mushrooms of western North America by Robert T Orr( Book )

4 editions published in 1979 in English and held by 423 WorldCat member libraries worldwide

Mammals of North America by Robert T Orr( Book )

1 edition published in 1971 in English and held by 358 WorldCat member libraries worldwide

The little-known pika by Robert T Orr( Book )

5 editions published in 1977 in English and held by 265 WorldCat member libraries worldwide

Describes the environment in which pikas, small, little known mammals, live and follows their lives through a series of seasons
Mushrooms and other common fungi of southern California by Robert T Orr( Book )

2 editions published in 1968 in English and held by 211 WorldCat member libraries worldwide

Mushrooms and other common fungi of the San Francisco Bay region by Robert T Orr( Book )

6 editions published between 1962 and 1968 in English and held by 171 WorldCat member libraries worldwide

Mammals of Lake Tahoe by Robert T Orr( Book )

3 editions published in 1949 in English and Undetermined and held by 116 WorldCat member libraries worldwide

The rabbits of California by Robert T Orr( Book )

4 editions published in 1940 in English and held by 106 WorldCat member libraries worldwide

Birds of the Lake Tahoe region by Robert T Orr( Book )

1 edition published in 1971 in English and held by 50 WorldCat member libraries worldwide

Natural history of the pallid bat, Antrozous pallidus (Le Conte) by Robert T Orr( Book )

1 edition published in 1954 in English and held by 28 WorldCat member libraries worldwide

Some observations on reproduction, growth, and social behavior in the Steller sea lion by Robert T Orr( Book )

2 editions published in 1967 in English and held by 27 WorldCat member libraries worldwide

Observations on the birds of northeastern Idaho by Robert T Orr( Book )

2 editions published in 1951 in English and held by 27 WorldCat member libraries worldwide

The California sea lion: skull growth and a comparison of two populations by Robert T Orr( Book )

1 edition published in 1970 in English and held by 24 WorldCat member libraries worldwide

The Pinniped population of Año Nuevo Island, California by Robert T Orr( Book )

2 editions published in 1965 in English and held by 22 WorldCat member libraries worldwide

Bats from the Gulf of California by Robert T Orr( Book )

3 editions published in 1964 in English and held by 22 WorldCat member libraries worldwide

Mammals of the Clearwater mountains, Idaho by Robert T Orr( Book )

1 edition published in 1943 in English and held by 19 WorldCat member libraries worldwide

 
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Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.33 (from 0.20 for Wildflower ... to 0.73 for Observatio ...)

Marine mammals of California
Alternative Names
Orr, Robert T.

Orr, Robert T. 1908-1994

Orr, Robert T. (Robert Thomas)

Orr, Robert Thomas .

Orr, Robert Thomas 1908-

Robert Thomas Orr

オル, R. T

Languages
English (103)

Spanish (15)

German (13)

Japanese (4)

Romanian (1)

Dutch (1)

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