Dyfyniad APA

(2002). Principles of cloning. Boston: Academic Press.

Dyfyniad Arddull Chicago

Principles of Cloning. Boston: Academic Press, 2002.

Dyfyniad MLA

Principles of Cloning. Boston: Academic Press, 2002.

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