Migration of birds /
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Govt. Print. Off,
1950.
|
| Series: | Circular (U.S. Fish and Wildlife Service) ;
16. |
| Subjects: |
| Physical Description: | iii, 102 pages : illustrations, maps ; 23 cm. |
|---|---|
| Bibliography: | Bibliography: pages 94-98. |