Cita APA (7th ed.)
Audesirk, T., & Audesirk, G. (1996). Biology: Life on earth (4th.ed.). Prentice Hall.
Cita Chicago (17th ed.)
Audesirk, Teresa, i Gerald Audesirk. Biology: Life on Earth. 4th.ed. New Jersey: Prentice Hall, 1996.
Cita MLA (9th ed.)
Audesirk, Teresa, i Gerald Audesirk. Biology: Life on Earth. 4th.ed. Prentice Hall, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.