Cita APA (7a ed.)

Kaufman, P. B., & LaCroix, J. D. (1979). Plants, people, and environment. Macmillan.

Cita Chicago Style (17a ed.)

Kaufman, Peter B., y Joseph Donald LaCroix. Plants, People, and Environment. New York: Macmillan, 1979.

Cita MLA (9a ed.)

Kaufman, Peter B., y Joseph Donald LaCroix. Plants, People, and Environment. Macmillan, 1979.