Dyfyniad APA

Cuddeback, J. A. D., & Martin, C. (2003). Friendship: The art of happiness. Epic.

Dyfyniad Arddull Chicago

Cuddeback, John A. D., and Curtis Martin. Friendship: The Art of Happiness. Greeley, Col.: Epic, 2003.

Dyfyniad MLA

Cuddeback, John A. D., and Curtis Martin. Friendship: The Art of Happiness. Epic, 2003.

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