Incoming Resources
- Animals in the ancient world from A to Z, Kenneth F. Kitchell, Jr
- Grzimek's animal life encyclopedia, extinction, Norman MacLeod, editor in chief ; J. David Archibald and Phillip S. Levin, advisory editors
- A dictionary of zoology, edited by Michael Allaby
- Grzimek's animal life encyclopedia, extinction, Norman MacLeod, editor in chief ; J. David Archibald and Phillip S. Levin, advisory editors ; [project editor, Deirdre S. Blanchfield]