| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Klondike & Snow: The Denver Zoo's Remarkable Story of Raising Two Polar Bear Cubs | 978-1-57O98-O59-6 (1-57O98-O59-4) | 1995 | Cynthia Bickel · Dennis Roling |
D.K · D. Kenny · David E. · David K. · David Kenny · "E. K."