Miles, H. J. (1971). Sexual understanding before marriage. Zondervan.
Cita Chicago (17th ed.)Miles, Herbert J. Sexual Understanding Before Marriage. Michigan: Zondervan, 1971.
Cita MLA (9th ed.)Miles, Herbert J. Sexual Understanding Before Marriage. Zondervan, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.