Não informado. (1970). Human inquiries. Association of Existentical Psychology and Psychiatry.
Chicago-referens (17:e uppl.)Não informado. Human Inquiries. Washington: Association of Existentical Psychology and Psychiatry, 1970.
MLA-referens (8:e uppl.)Não informado. Human Inquiries. Association of Existentical Psychology and Psychiatry, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.