Marcum, W. (1990). Youth ministry esentials: Six ready - to - use sessions to equip your volunteers. Group Books.
Chicago-čujuhus (17. p.)Marcum, Walt. Youth Ministry Esentials: Six Ready - to - Use Sessions to Equip Your Volunteers. Colorado: Group Books, 1990.
MLA-čujuhus (9. p.)Marcum, Walt. Youth Ministry Esentials: Six Ready - to - Use Sessions to Equip Your Volunteers. Group Books, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.