APA (7e ed.) Bronvermelding
Posterski, D. C. (1983). Why am I afraid to tell you I'm a Christian?: Witnessing Jesus' way. InterVarsity Press.
Chicago (17e ed.) Bronvermelding
Posterski, Donald C. Why Am I Afraid to Tell You I'm a Christian?: Witnessing Jesus' Way. Downers Grove, Ill.: InterVarsity Press, 1983.
MLA (9e ed.) Bronvermelding
Posterski, Donald C. Why Am I Afraid to Tell You I'm a Christian?: Witnessing Jesus' Way. InterVarsity Press, 1983.
Let op: Deze citaties zijn niet altijd 100% accuraat.