Vos, H. F. (1977). Effective Bible study. Zondervan.
Cita Chicago (17th ed.)Vos, Howard F. Effective Bible Study. Zondervan, 1977.
Cita MLA (9th ed.)Vos, Howard F. Effective Bible Study. Zondervan, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.