Most Popular Books
- The Mammalian Fauna of the White River Oligocene: Part V. Perissodactyla: Transactions, American Philosophical Society (vol. 28, part 5) (Transactions of the American Philosophical Society)
- The Mammalian Fauna of the White River Oligocene: Part III. Lagomorpha: Transactions, American Philosophical Society (vol. 28, part 3) (Transactions of the American Philosophical Society)