APA (7th ed.) Citation

Whiting, L. L. (1959). Spar Mountain sandstone in Cooks Mills area, Coles and Douglas Counties, Illinois. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Whiting, Lester Leroy. Spar Mountain Sandstone in Cooks Mills Area, Coles and Douglas Counties, Illinois. Urbana: Illinois State Geological Survey, 1959.

MLA (9th ed.) Citation

Whiting, Lester Leroy. Spar Mountain Sandstone in Cooks Mills Area, Coles and Douglas Counties, Illinois. Illinois State Geological Survey, 1959.