The California Desserts: An Ecological Rediscovery
The Gulf of California Biodiversity and Conservation
The Laws Field Guide to the Sierra Nevada
The Nature Handbook - a guide to observing the great outdoors
The Seven States of California - A Natural and Human History
Thirst For Independence The San Diego Water Story Adventures in Cultural and Natural History
This Land A Guide to Central National Forest
This Land A Guide to Eastern National Forests
This Land, A Guide to Western National Forest