Dyfyniad APA

Michelli, D. (1994). Assertiveness in a week (Second edition.). Hodder & Stoughton.

Dyfyniad Arddull Chicago

Michelli, Dena. Assertiveness in a Week. Second edition. London: Hodder & Stoughton, 1994.

Dyfyniad MLA

Michelli, Dena. Assertiveness in a Week. Second edition. Hodder & Stoughton, 1994.

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