APA-viite (7. p.)
Williams, D. E., & Gangel, K. O. (1993). Volunteers for today's church: How to recruit and retain workers. Baker Books.
Chicago-viite (17. p.)
Williams, Dennis E., ja Kenneth O. Gangel. Volunteers for Today's Church: How to Recruit and Retain Workers. Grand Rapids, Mich.: Baker Books, 1993.
MLA-viite (9. p.)
Williams, Dennis E., ja Kenneth O. Gangel. Volunteers for Today's Church: How to Recruit and Retain Workers. Baker Books, 1993.
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