year of publication | ISBN | author(s) | title |
1955 | 978-0-912550-00-8 | May Theilgaard Watts | Flower Finder: A Guide to the Identification of Spring Wild Flowers and Flower Families East of the Rockies and North of the Smokies, Exclusive of Trees and Shrubs (Nature Study Guides) |
1991 | 978-0-912550-01-5 | May Theilgaard Watts | Tree Finder: A Manual for Identification of Trees by their Leaves (Eastern US) (Nature Study Guides) |
1978 | 978-0-912550-02-2 | Glenn Keator | Pacific Coast Berry Finder: A Pocket Manual for Identifying Native Plants with Fleshy Fruits (Nature Study Guides) |
1970 | 978-0-912550-03-9 | May T. Watts · Tom Watts | Winter Tree Finder: A Manual for Identifying Deciduous Trees in Winter (Eastern US) (Nature Study Guides) |
1977 | 978-0-912550-04-6 | Roger J. Lederer | Pacific Coast Bird Finder: A Pocket Guide to Some Frequently Seen Birds (Nature Study Guides) |
1972 | 978-0-912550-05-3 | Tom Watts | Rocky Mountain Tree Finder a Manual for Identifying Rocky Mountain Trees |
1974 | 978-0-912550-07-7 | May Theilgaard Watts | Desert Tree Finder: a pocket manual for identifying desert trees (Nature Study Guides) |
1981 | 978-0-912550-10-7 | Ron Russo · Pam Olhausen | Pacific Intertidal Life: A Guide to Organisms of Rocky Reefs and Tide Pools of the Pacific Coast |
'' | 978-0-912550-12-1 | Dorcas S. Miller | Track Finder: A Guide to Mammal Tracks of Eastern North America (Nature Study Guides) |
'' | 978-0-912550-13-8 | Glenn Keator | Pacific Coast Fern Finder (Nature Study Guides) |
1987 | 978-0-912550-15-2 | Cherie Hunter Day | Life on Intertidal Rocks: A Guide to the Marine Life of the Rocky North Atlantic Coast (Nature Study Guides) |
'' | 978-0-912550-16-9 | Ron Russo | Pacific Coast Mammals: A Guide to Mammals of the Pacific Coast States, Their Tracks, Skulls and Other Signs (Nature Study Guides) |
1989 | 978-0-912550-17-6 | Dorcas S. Miller | Winter Weed Finder: A Guide to Dry Plants in Winter (Nature Study Guides) |
1990 | 978-0-912550-18-3 | Roger J. Lederer | Bird Finder: A Guide to the Common Birds of Eastern North America (Nature Study Guides) |
'' | 978-0-912550-20-6 | Ph.D. Janet L. Wingate | Rocky Mountain Flower Finder: A Guide to the Wildflowers Found Below Tree Line in the Rocky Mountains (Nature Study Guides) |
1991 | 978-0-912550-21-3 | Ron Russo | Mountain State Mammals: A Guide to Mammals of the Rocky Mountain Region (Nature Study Guides) |
1986 | 978-0-912550-22-0 | Dorcas S. Miller | Berry Finder: A Guide to Native Plants with Fleshy Fruits |
1999 | 978-0-912550-23-7 | May Theilgaard Watts | Reading the Landscape of America |
2001 | 978-0-912550-24-4 | Barbara Hallowell | Fern Finder: A Guide to Native Ferns of Central and Northeastern United States and Eastern Canada (Nature Study Guides) |
2002 | 978-0-912550-25-1 | Phoebe Watts | Redwood Region Flower Finder |
2005 | 978-0-912550-26-8 | Dorcas S. Miller | Constellation Finder: A guide to patterns in the night sky with star stories from around the world |
2004 | 978-0-912550-27-5 | Tom Watts | Pacific Coast Tree Finder: A Pocket Manual for Identifying Pacific Coast Trees (Finders) |
2008 | 978-0-912550-29-9 | Tom Watts · Bridget Watts | Rocky Mountain Tree Finder |