Cassens, J. (1970). The christian encounters drugs and drug abuse. Concordia Publishing House.
Cita Chicago (17th ed.)Cassens, Jans. The Christian Encounters Drugs and Drug Abuse. Concordia Publishing House, 1970.
Cita MLA (9th ed.)Cassens, Jans. The Christian Encounters Drugs and Drug Abuse. Concordia Publishing House, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.