Books by Barbara G. Phillips
Status of non-native plant spe
Status of non-native plant species, Tonto National Monument, Arizona
Expedition to the San Francisco Peaks
Annotated checklist of vascula
Annotated checklist of vascular plants of Grand Canyon National Park
Monitoring the effects of recr
Monitoring the effects of recreational use on Colorado River beaches in Grand Canyon National Park
Monitoring the Effects of Recr
Monitoring the Effects of Recreational Use on Colorado River Beaches in Grand Canyon National Park, 1986/Bs-55 (Bulletin Series (Museum of Northern Arizona Press), 55.)