Cita APA (7a ed.)

Saltman, J., & Zimering, S. (1973). Abortion today. Thomas.

Cita Chicago Style (17a ed.)

Saltman, Jules, y Stanley Zimering. Abortion Today. Springfield, Ill: Thomas, 1973.

Cita MLA (8a ed.)

Saltman, Jules, y Stanley Zimering. Abortion Today. Thomas, 1973.