Cita APA (7a ed.)

Callahan, D. (1971). Ethics and population limitation. Population Council; distributed by Key Book Service, Bridgeport, Conn.

Cita Chicago Style (17a ed.)

Callahan, Daniel. Ethics and Population Limitation. [New York: Population Council; distributed by Key Book Service, Bridgeport, Conn, 1971.

Cita MLA (9a ed.)

Callahan, Daniel. Ethics and Population Limitation. Population Council; distributed by Key Book Service, Bridgeport, Conn, 1971.