Illinois mineral production by counties, 1965 /
W.L. Busch.
APA Citation
Busch, W. L., Illinois State Geological Survey. (1967). Illinois mineral production by counties, 1965. Urbana, [Ill.]: Illinois State Geological Survey.
MLA Citation
Busch, Willis L, and Illinois State Geological Survey. Illinois Mineral Production by Counties, 1965. Urbana, [Ill.]: Illinois State Geological Survey, 1967.
Warning: These citations may not always be complete (especially for serials).