Richards, L. O. (1978). Sxity nine to start a study group and keep it growing. Zondervan.
Cita Chicago (17th ed.)Richards, Lawrence O. Sxity Nine to Start a Study Group and Keep It Growing. Zondervan, 1978.
Cita MLA (9th ed.)Richards, Lawrence O. Sxity Nine to Start a Study Group and Keep It Growing. Zondervan, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.