Bibliography Record
| Gill, Theodore Nicholas | |||
| 1907 | Systematic zoology: its progress and purpose. Science (n.s.) 26: 489-505. –Sirs., 494. | ||
Related Index Records
None Found
Bibliography and Index of the Sirenia and Desmostylia 
| Gill, Theodore Nicholas | |||
| 1907 | Systematic zoology: its progress and purpose. Science (n.s.) 26: 489-505. –Sirs., 494. | ||
None Found