| 000 | 00381 a2200133 4500 | ||
|---|---|---|---|
| 245 | 1 | _aTwo pelobatic frogs from the tertiary of North America and their relationships to fossil and recent forms | |
| 260 |
_aNew York _c1956 |
||
| 650 | _aFrogs | ||
| 100 | 1 |
_aZweifel, R.G. _d |
|
| 300 | _a45 p. | ||
| 440 |
_aNo. 1762 _vAmerican Museum Novitates |
||
| 942 |
_2udc _cB |
||
| 901 | _a50326 | ||
| 999 |
_c53355 _d53355 |
||