Dyfyniad APA

Lewis, R. (2004). Life. Boston: McGraw-Hill Higher Education.

Dyfyniad Arddull Chicago

Lewis, Ricki. Life. Boston: McGraw-Hill Higher Education, 2004.

Dyfyniad MLA

Lewis, Ricki. Life. Boston: McGraw-Hill Higher Education, 2004.

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