Cita APA (7th ed.)

Campbell, N. A. (2021). Biology: A global approach (12th.). Pearson Education Limited.

Cita Chicago (17th ed.)

Campbell, Neil A. Biology: A Global Approach. 12th. Harlow, Essex, England: Pearson Education Limited, 2021.

Cita MLA (9th ed.)

Campbell, Neil A. Biology: A Global Approach. 12th. Pearson Education Limited, 2021.