APA (7e ed.) Bronvermelding
Hay, R., Lim, V., Blocher, D., Ketelarr, J., Hay, S., & Taylor, D. W. (2007). Worth keeping: Global perspectives on best practice in missionary retention. William Carey Library.
Chicago (17e ed.) Bronvermelding
Hay, Rob, Valerie Lim, Detlef Blocher, Jaap Ketelarr, Sarah Hay, en D. Wiliam Taylor. Worth Keeping: Global Perspectives on Best Practice in Missionary Retention. Pasadena: William Carey Library, 2007.
MLA (9e ed.) Bronvermelding
Hay, Rob, et al. Worth Keeping: Global Perspectives on Best Practice in Missionary Retention. William Carey Library, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.