Dyfyniad APA

Reece, J. B., & Campbell, N. A. (2011). Campbell biology: Jane B. Reece ... [et al.] (9th ed.). Benjamin Cummings/Pearson.

Dyfyniad Arddull Chicago

Reece, Jane B., and Neil A. Campbell. Campbell Biology: Jane B. Reece ... [et Al.]. 9th ed. Boston: Benjamin Cummings/Pearson, 2011.

Dyfyniad MLA

Reece, Jane B., and Neil A. Campbell. Campbell Biology: Jane B. Reece ... [et Al.]. 9th ed. Benjamin Cummings/Pearson, 2011.

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