Cita APA

Cronquist, A., & Cronquist, A. (1971). Introductory botany (2. edition.). New York: Harper International Si Edition.

Citación estilo Chicago

Cronquist, Arthur, y Arthur Cronquist. Introductory Botany. 2. edition. New York: Harper International Si Edition, 1971.

Cita MLA

Cronquist, Arthur, y Arthur Cronquist. Introductory Botany. 2. edition. New York: Harper International Si Edition, 1971.