APA-Zitierstil (7. Ausg.)

Lester, D. (1973). Crisis intervention and counseling by telephone. Thomas.

Chicago-Zitierstil (17. Ausg.)

Lester, David. Crisis Intervention and Counseling by Telephone. Springfield, Ill: Thomas, 1973.

MLA-Zitierstil (9. Ausg.)

Lester, David. Crisis Intervention and Counseling by Telephone. Thomas, 1973.