APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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