Dyfyniad APA

Gilbert, S. F., & Singer, S. R. (2006). Developmental biology (8th ed.). Sinauer Associates.

Dyfyniad Arddull Chicago

Gilbert, Scott F., and Susuan R. Singer. Developmental Biology. 8th ed. Massachusetts: Sinauer Associates, 2006.

Dyfyniad MLA

Gilbert, Scott F., and Susuan R. Singer. Developmental Biology. 8th ed. Sinauer Associates, 2006.

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