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..
Chicago-Zitierstil (17. Ausg.)Bell, Larry S., und Nick D. Young. "Crime Prevention Through Environmental Design: Technical Guideline 7 : Planning Public Outdoor Areas." Crime Prevention Through Enviromental Design CPTED Program Manual. 1978.
MLA-Zitierstil (9. Ausg.)Bell, Larry S., und Nick D. Young. "Crime Prevention Through Environmental Design: Technical Guideline 7 : Planning Public Outdoor Areas." Crime Prevention Through Enviromental Design CPTED Program Manual., 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.