| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| A Field Guide to Eastern Butterflies | 978-0-395-90453-4 | 1998 | Dr Paul A Opler · Roger Tory Peterson |
| A Field Guide to Eastern Trees: Eastern United States and Canada, Including the Midwest | 978-0-395-90455-8 | 1998 | Roger Tory Peterson · George A Petrides · Janet Wehr · National Audubon Society · National Wildlife Federation · Roger Tory Peterson Institute |
| A Field Guide to Insects | 978-0-395-91170-9 | 1998 | Donald J. Borror · Richard E. White |
| Peterson First Guide to Wildflowers of Northeastern and North-central North America | 978-0-395-90667-5 | 1998 | Christopher Leahy · Roger Tory Peterson |