Assagioli, R. (1973). The act of will (ed.). Penguin group.
Lua i Stíl Chicago (17ú heag.)Assagioli, Roberto. The Act of Will. ed. New York: Penguin group, 1973.
Lua MLA (9ú heag.)Assagioli, Roberto. The Act of Will. ed. Penguin group, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.