Citazione Stile APA (7a Edizione)

Oppewal, D. (1997). Voices from the past: Reformed educators. U.P.A..

Citazione stile Chigago Style (17a edizione)

Oppewal, Donald. Voices from the Past: Reformed Educators. New York: U.P.A., 1997.

Citatione MLA (9a ed.)

Oppewal, Donald. Voices from the Past: Reformed Educators. U.P.A., 1997.