Dyfyniad APA

N. P. O., G., Stout ,G. W, & Taylor, D. J. (1995). Biological science (2nd ed.). Cambridge University Press.

Dyfyniad Arddull Chicago

N. P. O., Green, Stout ,G. W, and D. J. Taylor. Biological Science. 2nd ed. Cambridge: Cambridge University Press, 1995.

Dyfyniad MLA

N. P. O., Green, et al. Biological Science. 2nd ed. Cambridge University Press, 1995.

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