Axelrod, D. I. (1979). Age and origin of Sonoran Desert vegetation. California Academy of Sciences.
Chicago Style (17th ed.) CitationAxelrod, Daniel I. Age and Origin of Sonoran Desert Vegetation. San Francisco: California Academy of Sciences, 1979.
MLA (9th ed.) CitationAxelrod, Daniel I. Age and Origin of Sonoran Desert Vegetation. California Academy of Sciences, 1979.
Warning: These citations may not always be 100% accurate.