APA (7th ed.) Citation

Bensen, C. H., & Polidata. (1997). Demographic atlas of Illinois: Townships and places, 1990 census edition. Polidata.

Chicago Style (17th ed.) Citation

Bensen, Clark H., and Polidata. Demographic Atlas of Illinois: Townships and Places, 1990 Census Edition. Lake Ridge, Va.: Polidata, 1997.

MLA (8th ed.) Citation

Bensen, Clark H., and Polidata. Demographic Atlas of Illinois: Townships and Places, 1990 Census Edition. Polidata, 1997.

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