Gaya APA

Audesirk, T., E, I, A, G, I, B, B. (2011). Biology: life on earth . San Francisco: San Francisco: Benjamin Cummings, 2011.

Gaya MLA

Audesirk, Teresa., E, I., Audesirk,, Gerald, II., Byers,, Bruce. "Biology: life on earth". San Francisco: San Francisco: Benjamin Cummings, 2011, 2011. .