Peterson, Jon A. (2009-03-27). "The Birth of Organized City Planning in the United States, 1909–1910". Journal of the American Planning Association. 75 (2): 123–133. doi:10.1080/01944360802608484. ISSN0194-4363.
M., Ward, Robert (2011). Planning and community development A guide for the 21st century. WW Norton & Co. ISBN9780393732924. OCLC755061638.{{cite book}}: CS1 maint: multiple names: authors list (link)
Peterson, Jon A. (2009-03-27). "The Birth of Organized City Planning in the United States, 1909–1910". Journal of the American Planning Association. 75 (2): 123–133. doi:10.1080/01944360802608484. ISSN0194-4363.