APA

Callahan S. C., . (1968). Beyond birth control. New York: Sheed Ward.

Chicago

Callahan Sidney Cornelia, . 1968. Beyond birth control. New York: Sheed Ward.

Harvard

Callahan S. C., . (1968). Beyond birth control. New York: Sheed Ward.

MLA

Callahan Sidney Cornelia, . Beyond birth control. New York: Sheed Ward. 1968.