Cita APA (7a ed.)

Tompkins, P., & Bird Christopher. (1973). The secret life of plants. Harper & Row Publishers.

Cita Chicago Style (17a ed.)

Tompkins, Peter, y Bird Christopher. The Secret Life of Plants. New York: Harper & Row Publishers, 1973.

Cita MLA (9a ed.)

Tompkins, Peter, y Bird Christopher. The Secret Life of Plants. Harper & Row Publishers, 1973.