APA (7e ed.) Bronvermelding

Fensterhem, H. (1978). Dont say yes when you want to say no. Dell Pub.

Chicago (17e ed.) Bronvermelding

Fensterhem, Herbert. Dont Say Yes When You Want to Say No. New York: Dell Pub, 1978.

MLA (9e ed.) Bronvermelding

Fensterhem, Herbert. Dont Say Yes When You Want to Say No. Dell Pub, 1978.