Floristic surveys of Saguaro National Park protected natural areas /
William L. Halvorson, Brooke S. Gebow, editors.
APA Citation
Gebow, B. S., Halvorson, W. L. (William Lee)., Sonoran Desert Field Station (Tucson, A. (2000). Floristic surveys of Saguaro National Park protected natural areas. Tucson, Ariz.: United States Geological Survey, Sonoran Desert Field Station, School of Renewable Natural Resources.
MLA Citation
Gebow, Brooke S, William L. (William Lee) Halvorson, and Ariz.) Sonoran Desert Field Station (Tucson. Floristic Surveys of Saguaro National Park Protected Natural Areas. Tucson, Ariz.: United States Geological Survey, Sonoran Desert Field Station, School of Renewable Natural Resources, 2000.
Warning: These citations may not always be complete (especially for serials).