Youngberg, J. a. M. (1985). Heart tuning: A guide to better family worship. Review and Herald.
Cita Chicago (17th ed.)Youngberg, John and Milie. Heart Tuning: A Guide to Better Family Worship. Review and Herald, 1985.
Cita MLA (9th ed.)Youngberg, John and Milie. Heart Tuning: A Guide to Better Family Worship. Review and Herald, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.