Cita APA (7th ed.)

Raven, P. H., & Evert, R. F. (1976). Biology of plants (2nd ed.). Worth Publishers.

Cita Chicago (17th ed.)

Raven, Peter H., i Ray F. Evert. Biology of Plants. 2nd ed. New York: Worth Publishers, 1976.

Cita MLA (9th ed.)

Raven, Peter H., i Ray F. Evert. Biology of Plants. 2nd ed. Worth Publishers, 1976.