Citazione Stile APA (7a Edizione)
Williams, D. E., & Gangel, K. O. (1993). Volunteers for today's church: How to recruit and retain workers. Baker Books.
Citazione stile Chigago Style (17a edizione)
Williams, Dennis E., e Kenneth O. Gangel. Volunteers for Today's Church: How to Recruit and Retain Workers. Grand Rapids, Mich.: Baker Books, 1993.
Citatione MLA (9a ed.)
Williams, Dennis E., e Kenneth O. Gangel. Volunteers for Today's Church: How to Recruit and Retain Workers. Baker Books, 1993.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.