Citazione Stile APA (7a Edizione)

Hall, C. A., & Holbrook, L. L. (2007). Introduction to the geology of southern California and its native plants. University of California Press.

Citazione stile Chigago Style (17a edizione)

Hall, Clarence A., e Lauri L. Holbrook. Introduction to the Geology of Southern California and Its Native Plants. Berkeley: University of California Press, 2007.

Citatione MLA (9a ed.)

Hall, Clarence A., e Lauri L. Holbrook. Introduction to the Geology of Southern California and Its Native Plants. University of California Press, 2007.