Cita APA (7a ed.)

Bell, L. S., & Young, N. D. (1978). Crime prevention through environmental design: Technical guideline 7 : planning public outdoor areas. Crime prevention through enviromental design CPTED program manual..

Cita Chicago Style (17a ed.)

Bell, Larry S., y Nick D. Young. "Crime Prevention Through Environmental Design: Technical Guideline 7 : Planning Public Outdoor Areas." Crime Prevention Through Enviromental Design CPTED Program Manual. 1978.

Cita MLA (8a ed.)

Bell, Larry S., y Nick D. Young. "Crime Prevention Through Environmental Design: Technical Guideline 7 : Planning Public Outdoor Areas." Crime Prevention Through Enviromental Design CPTED Program Manual., 1978.