Dyfyniad APA

Levine, L. S., & Norman, M. (1991). How Could I Ever Know? Alfred Publishing Co., Inc..

Dyfyniad Arddull Chicago

Levine, Lucy Simon, and Marsha Norman. How Could I Ever Know? Louisville, United States: Alfred Publishing Co., Inc., 1991.

Dyfyniad MLA

Levine, Lucy Simon, and Marsha Norman. How Could I Ever Know? Alfred Publishing Co., Inc., 1991.

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