* New York City Department of City Planning – Zoning History* Schindler's Land Use Page (Michigan State University Extension Land Use Team)* Land Policy Institute at Michigan State University* Zoning: A Reply To The Critics
* New York City Department of City Planning – Zoning History* Schindler's Land Use Page (Michigan State University Extension Land Use Team)* Land Policy Institute at Michigan State University* Zoning: A Reply To The Critics