APA (7e ed.) Bronvermelding

Snow, P. (1973). Key to self-understanding. Aldus Books.

Chicago (17e ed.) Bronvermelding

Snow, Patricia. Key to Self-understanding. London: Aldus Books, 1973.

MLA (9e ed.) Bronvermelding

Snow, Patricia. Key to Self-understanding. Aldus Books, 1973.