Dyfyniad APA

Michael Roberts. (2014). Biology for Life Second Edition (2nd.). Oxford University Press.

Dyfyniad Arddull Chicago

Michael Roberts. Biology for Life Second Edition. 2nd. Oxford University Press, 2014.

Dyfyniad MLA

Michael Roberts. Biology for Life Second Edition. 2nd. Oxford University Press, 2014.

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