Dyfyniad APA

Joy Berry. (2005). A Book About Overdoing It. New York: Scholastic.

Dyfyniad Arddull Chicago

Joy Berry. A Book About Overdoing It. New York: Scholastic, 2005.

Dyfyniad MLA

Joy Berry. A Book About Overdoing It. New York: Scholastic, 2005.

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