Scats and Tracks of the Desert Southwest (Scats and Tracks Series)

National Audubon Society Field Guide to the Southwestern States: Arizona, New Mexico, Nevada, Utah (Audubon Field Guide)

Scats and Tracks of the Rocky Mountains, 2nd (Scats and Tracks Series)

Medicinal Plants of the Desert and Canyon West: A Guide to Identifying, Preparing, and Using Traditional Medicinal Plants Found in the Deserts and Canyons of the West and Southwest

A Guide to Plants of the Northern Chihuahuan Desert

Animal Tracks of Arizona & New Mexico (Animal Tracks Guides)

Mammals of Arizona Field Guide (Mammal Identification Guides)

Deserts (National Audubon Society Nature Guides)

Birds of Arizona Field Guide

Scats and Tracks of the Rocky Mountains: A Field Guide to the Signs of 70 Wildlife Species (Scats and Tracks Series)