APA (7th ed.) Citation

Illinois. Department of Business and Economic Development. (1970). Illinois regional economic data book.

Chicago Style (17th ed.) Citation

Illinois. Department of Business and Economic Development. Illinois Regional Economic Data Book. [Springfield, Dept. of Business and Economic Development], 1970.

MLA (8th ed.) Citation

Illinois. Department of Business and Economic Development. Illinois Regional Economic Data Book. 1970.

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