Hopper, L. J. (2005). Security and Site Designa Landscape Architectural Approach to Analysis, assessment, and design implementationLeonard J. Hopper and Martha J. Droge. John Wiley & Sons.
Chicago-viite (17. p.)Hopper, Leonard J. Security and Site Designa Landscape Architectural Approach to Analysis, Assessment, and Design ImplementationLeonard J. Hopper and Martha J. Droge. John Wiley & Sons, 2005.
MLA-viite (8. p.)Hopper, Leonard J. Security and Site Designa Landscape Architectural Approach to Analysis, Assessment, and Design ImplementationLeonard J. Hopper and Martha J. Droge. John Wiley & Sons, 2005.
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