Wild birds of California /

by Lukas, David, 1964-, Lukas, David, 1964-
Published 2000

Watchable birds of the Great Basin /

by Lukas, David, 1964-
Published 1999

A year of watching wildlife : a guide to the world's best animal encounters /

by Lukas, David, 1964-
Published 2009

Grand Canyon National Park

Published 2004

Sierra Nevada natural history /

by Storer, Tracy I (Tracy Irwin), 1889-1973, Storer, Tracy I (Tracy Irwin), 1889-1973, Storer, Tracy I, (Tracy Irwin), 1889-1973
Published 2004

Sierra Nevada natural history /

by Storer, Tracy Irwin, 1889-
Published 2004