APA (7th ed.) Citation

Illinois State Geological Survey, Savage, T. E., Nebel, M. L., Culver, H. E., Bretz, J. H., & Currier, L. W. (1923). Economic and geologic papers.: Geology and mineral resources of the La Harpe and Good Hope quadrangles. [publisher not identified].

Chicago Style (17th ed.) Citation

Illinois State Geological Survey, T. E. Savage, Merle Louis Nebel, Harold Eugene Culver, J. Harlen Bretz, and Louis Wade Currier. Economic and Geologic Papers.: Geology and Mineral Resources of the La Harpe and Good Hope Quadrangles. Urbana: [publisher not identified], 1923.

MLA (9th ed.) Citation

Illinois State Geological Survey, et al. Economic and Geologic Papers.: Geology and Mineral Resources of the La Harpe and Good Hope Quadrangles. [publisher not identified], 1923.