Pennsylvania Birds: A Folding Pocket Guide to Familiar Species (Wildlife and Nature Identification)

Birds of Pennsylvania Field Guide, Second Edition

Pennsylvania Trees & Wildflowers: A Folding Pocket Guide to Familiar Plants (Wildlife and Nature Identification)

Pennsylvania Wildlife: A Folding Pocket Guide to Familiar Animals (Wildlife and Nature Identification)

Pennsylvania Butterflies & Moths: A Folding Pocket Guide to Familiar Species (Wildlife and Nature Identification)

Animal Tracks: A Folding Pocket Guide to the Tracks & Signs of Familiar North American Species (Wildlife and Nature Identification)

New Jersey Birds: A Folding Pocket Guide to Familiar Species (Wildlife and Nature Identification)

Trees of Pennsylvania Field Guide (Tree Identification Guides)

Eastern Backyard Birds: A Folding Pocket Guide to Familiar Urban Species (Wildlife and Nature Identification)

Trees: A Folding Pocket Guide to Familiar North American Plants (Wildlife and Nature Identification)