APA استشهاد

Swan,Michael, & Walter,Catherine. (2009). Good grammar book. Oxford University Press.

استشهاد بنمط شيكاغو

Swan,Michael, و Walter,Catherine. Good Grammar Book. Oxford: Oxford University Press, 2009.

MLA استشهاد

Swan,Michael, و Walter,Catherine. Good Grammar Book. Oxford University Press, 2009.