APA (7e ed.) Bronvermelding
Knowdell, R. L., & Chapman, E. N. (1993). Personal counseling: Helping others help themselves (3rd ed.). Crisp Publications.
Chicago (17e ed.) Bronvermelding
Knowdell, Richard L., en Elwood N. Chapman. Personal Counseling: Helping Others Help Themselves. 3rd ed. Menlo Park, Calif: Crisp Publications, 1993.
MLA (9e ed.) Bronvermelding
Knowdell, Richard L., en Elwood N. Chapman. Personal Counseling: Helping Others Help Themselves. 3rd ed. Crisp Publications, 1993.
Let op: Deze citaties zijn niet altijd 100% accuraat.