APA (7th ed.) Citation

(1987). Zone district map, Marion, Illinois. [publisher not identified].

Chicago Style (17th ed.) Citation

Zone District Map, Marion, Illinois. [Marion, Ill.?]: [publisher not identified], 1987.

MLA (8th ed.) Citation

Zone District Map, Marion, Illinois. [publisher not identified], 1987.

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