Cita APA (7a ed.)

Bickman, L., & Bickman, L. (1977). Citizen crime reporting projects: Phase I summary report. National Evaluation Program.

Cita Chicago Style (17a ed.)

Bickman, Leonard, y Leonard Bickman. "Citizen Crime Reporting Projects: Phase I Summary Report." National Evaluation Program 1977.

Cita MLA (8a ed.)

Bickman, Leonard, y Leonard Bickman. "Citizen Crime Reporting Projects: Phase I Summary Report." National Evaluation Program, 1977.