Cita APA (7a ed.)

Bull, R., & Cherryman, J. (1995). Helping to identify skills gaps in specialist investigative interviewing: Enhancement of professional skills. [Police Research Group].

Cita Chicago Style (17a ed.)

Bull, Ray, y Julie Cherryman. Helping to Identify Skills Gaps in Specialist Investigative Interviewing: Enhancement of Professional Skills. [London]: [Police Research Group], 1995.

Cita MLA (8a ed.)

Bull, Ray, y Julie Cherryman. Helping to Identify Skills Gaps in Specialist Investigative Interviewing: Enhancement of Professional Skills. [Police Research Group], 1995.