APA (7e ed.) Bronvermelding

Barun, K. (1988). When saying no isn't enough how to keep th children you love off drugs. New American Library.

Chicago (17e ed.) Bronvermelding

Barun, Ken. When Saying No Isn't Enough How to Keep Th Children You Love off Drugs. New American Library, 1988.

MLA (9e ed.) Bronvermelding

Barun, Ken. When Saying No Isn't Enough How to Keep Th Children You Love off Drugs. New American Library, 1988.

Let op: Deze citaties zijn niet altijd 100% accuraat.