Cita APA (7th ed.)

Whaley, W. G., Breland, O. P., Heimsch, C., Phelps, A., Schrank, A. R., Wyss, O., . . . Spear, I. (1964). Principles of biology (3a. ed.). Harper & Row.

Cita Chicago (17th ed.)

Whaley, W. Gordon, et al. Principles of Biology. 3a. ed. Nueva York: Harper & Row, 1964.

Cita MLA (9th ed.)

Whaley, W. Gordon, et al. Principles of Biology. 3a. ed. Harper & Row, 1964.