Cita APA (7th ed.)

Weisz, P. B., & Keogh, R. N. (1977). The science of biology (5th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Weisz, Paul B., i Richard N. Keogh. The Science of Biology. 5th ed. New York: McGraw-Hill, 1977.

Cita MLA (9th ed.)

Weisz, Paul B., i Richard N. Keogh. The Science of Biology. 5th ed. McGraw-Hill, 1977.