APA (7e ed.) Bronvermelding
Johns, D. L. (1982). Solving life's problems: A Christian approach. International correspondence institute.
Chicago (17e ed.) Bronvermelding
Johns, Dorothy L. Solving Life's Problems: A Christian Approach. Belgium: International correspondence institute, 1982.
MLA (9e ed.) Bronvermelding
Johns, Dorothy L. Solving Life's Problems: A Christian Approach. International correspondence institute, 1982.
Let op: Deze citaties zijn niet altijd 100% accuraat.