Dyfyniad APA

(2015). Who's buying groceries (Twelfth edition.). New Strategist Press.

Dyfyniad Arddull Chicago

Who's Buying Groceries. Twelfth edition. Amityville, New York: New Strategist Press, 2015.

Dyfyniad MLA

Who's Buying Groceries. Twelfth edition. New Strategist Press, 2015.

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