Cita APA

Campbell, N. A. (2007). Essential biology. San Francisco, CA: Pearson/Benjamin Cummings.

Chicago Style Citation

Campbell, Neil A. Essential Biology. San Francisco, CA: Pearson/Benjamin Cummings, 2007.

Cita MLA

Campbell, Neil A. Essential Biology. San Francisco, CA: Pearson/Benjamin Cummings, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.