Dyfyniad APA

Jones, M. $., Fosbery, R., Taylor, D., & Gregory, J. (2003). AS level and A level: Biology. Cambridge University Press.

Dyfyniad Arddull Chicago

Jones, M. $q(Mary), Richard Fosbery, Dennis Taylor, and Jennifer Gregory. AS Level and A Level: Biology. Cambridge: Cambridge University Press, 2003.

Dyfyniad MLA

Jones, M. $q(Mary), et al. AS Level and A Level: Biology. Cambridge University Press, 2003.

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