Speck, J., & Speck, J. (2018). Walkable City Rules: 101 Steps to Making Better Places (1st ed. 2018.). Island Press/Center for Resource Economics : Imprint: Island Press. https://doi.org/10.5822/978-1-61091-899-2
Παραπομπή σε μορφή Chicago (17η εκδ.)Speck, Jeff, και Jeff Speck. Walkable City Rules: 101 Steps to Making Better Places. 1st ed. 2018. Washington, DC: Island Press/Center for Resource Economics : Imprint: Island Press, 2018. https://doi.org/10.5822/978-1-61091-899-2.
Παραπομπή σε μορφή MLA (8th εκδ.)Speck, Jeff, και Jeff Speck. Walkable City Rules: 101 Steps to Making Better Places. 1st ed. 2018. Island Press/Center for Resource Economics : Imprint: Island Press, 2018. https://doi.org/10.5822/978-1-61091-899-2.
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