APA (7th ed.) Citation

Hester, N. C., & Anderson, R. C. (1969). Sand and gravel resources of Macon County, Illinois. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Hester, Norman C., and Richard C. Anderson. Sand and Gravel Resources of Macon County, Illinois. Urbana: Illinois State Geological Survey, 1969.

MLA (9th ed.) Citation

Hester, Norman C., and Richard C. Anderson. Sand and Gravel Resources of Macon County, Illinois. Illinois State Geological Survey, 1969.