Wulff, D. M. (1991). Psychology of religion: Classic and contemporary views. Wiley & Sons.
Citazione stile Chigago Style (17a edizione)Wulff, David M. Psychology of Religion: Classic and Contemporary Views. New York [u.a.]: Wiley & Sons, 1991.
Citatione MLA (8a ed.)Wulff, David M. Psychology of Religion: Classic and Contemporary Views. Wiley & Sons, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.