Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.