APA (7th ed.) Citation
Carr, D. D., & Webb, W. M. (1970). Sand and gravel resources of Indiana. [State of Indiana, Geological Survey].
Chicago Style (17th ed.) Citation
Carr, Donald D., and William M. Webb. Sand and Gravel Resources of Indiana. Bloomington: [State of Indiana, Geological Survey], 1970.
MLA (9th ed.) Citation
Carr, Donald D., and William M. Webb. Sand and Gravel Resources of Indiana. [State of Indiana, Geological Survey], 1970.
Warning: These citations may not always be 100% accurate.