Citazione Stile APA (7a Edizione)

Davis, R. S., & Steiner, M. L. (1952). Philippine orchids: A detailed treatment of some one hundred native species. William-Frederick Press.

Citazione stile Chigago Style (17a edizione)

Davis, Reg S., e Mona Lisa Steiner. Philippine Orchids: A Detailed Treatment of Some One Hundred Native Species. New York: William-Frederick Press, 1952.

Citatione MLA (9a ed.)

Davis, Reg S., e Mona Lisa Steiner. Philippine Orchids: A Detailed Treatment of Some One Hundred Native Species. William-Frederick Press, 1952.