Cita APA (7a ed.)

Shapiro Robert & Rapkin, J. (1991). Awakening to the plant kingdom. Cassandra Press.

Cita Chicago Style (17a ed.)

Shapiro Robert y Julie Rapkin. Awakening to the Plant Kingdom. San Rafael: Cassandra Press, 1991.

Cita MLA (9a ed.)

Shapiro Robert y Julie Rapkin. Awakening to the Plant Kingdom. Cassandra Press, 1991.