Cita APA (7a ed.)

Tompkins, P., & Bird, C. (1976). The secret life of plants (Rev. ed.). Penguin Books.

Cita Chicago Style (17a ed.)

Tompkins, Peter, y Christopher Bird. The Secret Life of Plants. Rev. ed. Harmondsworth: Penguin Books, 1976.

Cita MLA (9a ed.)

Tompkins, Peter, y Christopher Bird. The Secret Life of Plants. Rev. ed. Penguin Books, 1976.