Wekerle, G. R., & Whitzman, C. (1995). Safe cities. Guidelines for planning, design, and management ([1st ed.].). Van Nostrand Reinhold.
Citace podle Chicago (17th ed.)Wekerle, Gerda R., a Carolyn Whitzman. Safe Cities. Guidelines for Planning, Design, and Management. [1st ed.]. New York: Van Nostrand Reinhold, 1995.
Citace podle MLA (9th ed.)Wekerle, Gerda R., a Carolyn Whitzman. Safe Cities. Guidelines for Planning, Design, and Management. [1st ed.]. Van Nostrand Reinhold, 1995.
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