Dyfyniad APA

Lamb, W. (1999). I know this much is true (1st pbk. ed.). Regan Books.

Dyfyniad Arddull Chicago

Lamb, Wally. I Know This Much Is True. 1st pbk. ed. New York, NY: Regan Books, 1999.

Dyfyniad MLA

Lamb, Wally. I Know This Much Is True. 1st pbk. ed. Regan Books, 1999.

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