Dyfyniad APA

Williams, N. (2009). Duty and responsibility. Epitome Books.

Dyfyniad Arddull Chicago

Williams, Nancy. Duty and Responsibility. New Delhi: Epitome Books, 2009.

Dyfyniad MLA

Williams, Nancy. Duty and Responsibility. Epitome Books, 2009.

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