Παραπομπή σε μορφή APA (7η εκδ.)

Lefrançois, G. R. (1991). Psychology for teaching: A bear always, usually, sometimes, rarely, never, always faces the front--will not commit himself just now (7th ed.). Wadsworth Publ. Co..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Lefrançois, Guy R. Psychology for Teaching: A Bear Always, Usually, Sometimes, Rarely, Never, Always Faces the Front--will Not Commit Himself Just Now. 7th ed. Belmont, Calif.: Wadsworth Publ. Co., 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Lefrançois, Guy R. Psychology for Teaching: A Bear Always, Usually, Sometimes, Rarely, Never, Always Faces the Front--will Not Commit Himself Just Now. 7th ed. Wadsworth Publ. Co., 1991.