एपीए उद्धरण

Johnson, R. E. (1971). Existential man: The challenge of psychotherapy. Pergamon Press.

शिकागो स्टाइल उद्धरण

Johnson, Richard E. Existential Man: The Challenge of Psychotherapy. New York: Pergamon Press, 1971.

एमएलए उद्धरण

Johnson, Richard E. Existential Man: The Challenge of Psychotherapy. Pergamon Press, 1971.