APA (7th ed.) Zitazioa

Assagioli, R. (1973). The act of will (ed.). Penguin group.

Chicago Style (17th ed.) Zitazioa

Assagioli, Roberto. The Act of Will. ed. New York: Penguin group, 1973.

MLA (9th ed.) Zitazioa

Assagioli, Roberto. The Act of Will. ed. Penguin group, 1973.