Style de citation APA (7e éd.)

Knowdell, R. L., & Chapman, E. N. (1993). Personal counseling (3rd ed.). Crisp Publications.

Style de citation Chicago (17e éd.)

Knowdell, Richard L., et Elwood N. Chapman. Personal Counseling. 3rd ed. Menlo Park, Calif.: Crisp Publications, 1993.

Style de citation MLA (9e éd.)

Knowdell, Richard L., et Elwood N. Chapman. Personal Counseling. 3rd ed. Crisp Publications, 1993.