Speed in animals their specialization for running and leaping.
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
New York
Hafner Publishing
1965 [c1944]
|
| Edizioa: | (Facsimile of 1944 edition) [by] A. Brazier Howell. |
| Gaiak: |