APA (7th ed.) Citation

Rockford Map Publishers & Rockford Map Publishers. (1975). General highway map, Calhoun County, Michigan: Revised by Rockford Map Publishers, Inc (Revised 1975.). Rockford Map Publishers.

Chicago Style (17th ed.) Citation

Rockford Map Publishers and Rockford Map Publishers. General Highway Map, Calhoun County, Michigan: Revised by Rockford Map Publishers, Inc. Revised 1975. [Rockford, Illinois]: Rockford Map Publishers, 1975.

MLA (9th ed.) Citation

Rockford Map Publishers and Rockford Map Publishers. General Highway Map, Calhoun County, Michigan: Revised by Rockford Map Publishers, Inc. Revised 1975. Rockford Map Publishers, 1975.