Dyfyniad APA

Wilson, K., & Healy, T. (2007). First choice: Student Book. Oxford: Oxford Univ. Press.

Dyfyniad Arddull Chicago

Wilson, Ken, và Thomas Healy. First Choice: Student Book. Oxford: Oxford Univ. Press, 2007.

Dyfyniad MLA

Wilson, Ken, và Thomas Healy. First Choice: Student Book. Oxford: Oxford Univ. Press, 2007.

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