1. City of Hammond Zoning Ordinance Collection: City Planning and Landscape Architecture (CPLA) Format: Book Publication Date: 1981-06-22 Location: City Planning & Landscape Architecture Reference and Resource Center, Funk Library, University of Illinois Box: 3; Folder: 4 CPLA Sub-Collection: Lake Michigan Development Project Notes: Revised June 1983
2. Zoning ordinance Grundy County, Illinois Collection: City Planning and Landscape Architecture (CPLA) Format: Ordinance Publication Date: 1981-02-28 Location: City Planning & Landscape Architecture Reference and Resource Center, Funk Library, University of Illinois Box: 34; Folder: 20 CPLA Sub-Collection: General subjects Notes: Adopted July 8, 1969 as amended. 1981 edition.