APA

O'Brien J. A., . (1953). Sex-character education: explaining the facts of life to the young. New York: Macmillan.

Chicago

O'Brien John Anthony, . 1953. Sex-character education: explaining the facts of life to the young. New York: Macmillan.

Harvard

O'Brien J. A., . (1953). Sex-character education: explaining the facts of life to the young. New York: Macmillan.

MLA

O'Brien John Anthony, . Sex-character education: explaining the facts of life to the young. New York: Macmillan. 1953.