Marcum, W. (1990). Youth ministry esentials: Six ready - to - use sessions to equip your volunteers. Group Books.
Chicago Style (17th ed.) ZitazioaMarcum, Walt. Youth Ministry Esentials: Six Ready - to - Use Sessions to Equip Your Volunteers. Colorado: Group Books, 1990.
MLA (9th ed.) ZitazioaMarcum, Walt. Youth Ministry Esentials: Six Ready - to - Use Sessions to Equip Your Volunteers. Group Books, 1990.
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