Peterson Field Guide(R) to More Eastern/Central Birding by Ear

Peterson field guide to birds of eastern and central North America

All Things Reconsidered

A field guide to wildflowers of Northeastern and North-Central North America

Wild America

Peterson field guide to birds of Western North America

Peterson Field Guide to Birds of North America

Peterson First Guide to Wildflowers of Northeastern and North-central North America

Peterson First Guide to Birds of North America

Roadside Wildflowers

Birds of the Midwest