Dyfyniad APA

Shanley, J. P. (2008). Doubt: A parable. Theatre Communications Group.

Dyfyniad Arddull Chicago

Shanley, John Patrick. Doubt: A Parable. New York: Theatre Communications Group, 2008.

Dyfyniad MLA

Shanley, John Patrick. Doubt: A Parable. Theatre Communications Group, 2008.

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