APA (7th ed.) Citation

Chicago Regional Planning Association. (1939). Zoning map of Lake County, Illinois: Adopted April 25, 1939. Chicago Regional Planning Association.

Chicago Style (17th ed.) Citation

Chicago Regional Planning Association. Zoning Map of Lake County, Illinois: Adopted April 25, 1939. [Chicago, Ill.]: Chicago Regional Planning Association, 1939.

MLA (8th ed.) Citation

Chicago Regional Planning Association. Zoning Map of Lake County, Illinois: Adopted April 25, 1939. Chicago Regional Planning Association, 1939.

Warning: These citations may not always be 100% accurate.