Guide to rocks and minerals of Illinois /
Wayne Frankie.
APA Citation
Frankie, W. T., Illinois State Geological Survey. (2004). Guide to rocks and minerals of Illinois. Champaign, Ill.: Illinois State Geological Survey.
MLA Citation
Frankie, Wayne T, and Illinois State Geological Survey. Guide to Rocks And Minerals of Illinois. Champaign, Ill.: Illinois State Geological Survey, 2004.
Warning: These citations may not always be complete (especially for serials).