Cita APA (7a ed.)

Colman, W. (1989). On call: The work of a telephone helpline for child abusers (1. publ.). Aberdeen Univ. Pr.

Cita Chicago Style (17a ed.)

Colman, Warren. On Call: The Work of a Telephone Helpline for Child Abusers. 1. publ. Aberdeen: Aberdeen Univ. Pr, 1989.

Cita MLA (8a ed.)

Colman, Warren. On Call: The Work of a Telephone Helpline for Child Abusers. 1. publ. Aberdeen Univ. Pr, 1989.