| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Mountain State Mammals: A Guide to Mammals of the Rocky Mountain Region | 978-0-912550-21-3 (0-912550-21-X) | 1991 | |
| Pacific Coast Mammals: A Guide to Mammals of the Pacific Coast States, Their Tracks, Skulls and Other Signs | 978-0-912550-16-9 (0-912550-16-3) | 1987 | |
| Pacific Intertidal Life: A Guide to Organisms of Rocky Reefs and Tide Pools of the Pacific Coast | 978-0-912550-10-7 (0-912550-10-4) | 1981 | Pam Olhausen |