Cita APA (7a ed.)

Freeman, S. (2011). Biological science (Fourth edition.). Benjamin Cummings.

Cita Chicago Style (17a ed.)

Freeman, Scott. Biological Science. Fourth edition. Boston: Benjamin Cummings, 2011.

Cita MLA (9a ed.)

Freeman, Scott. Biological Science. Fourth edition. Benjamin Cummings, 2011.