APA (7e ed.) Bronvermelding
Trobisch, W. (1970). A Christian view of contraception: Please help me! Please love me. InterVarsity Press.
Chicago (17e ed.) Bronvermelding
Trobisch, Walter. A Christian View of Contraception: Please Help Me! Please Love Me. Downers Grove, Ill.: InterVarsity Press, 1970.
MLA (9e ed.) Bronvermelding
Trobisch, Walter. A Christian View of Contraception: Please Help Me! Please Love Me. InterVarsity Press, 1970.
Let op: Deze citaties zijn niet altijd 100% accuraat.