Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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