| 1 |
Animal ecology / by Charles Elton
6th impression. - London : Sidgwick & Jackson , 1953
|
| 2 |
Zoogeography of the sea / by Sven Ekman ; translated from the Swedish by Elizabeth Palmer
London : Sidgwick and Jackson , 1953
|
| 3 |
Zoogeography of the land and inland waters / by L.F. de Beaufort
London : Sidgwick and Jackson , 1951
|
