McCulloch, C. M., Sullivan, C. D., & Jeran, P. W. (1975). Geologic investigations of underground coal mining problems. U.S. Dept. of the Interior.
Chicago Style (17th ed.) CitationMcCulloch, C. M., C. D. Sullivan, and P. W. Jeran. Geologic Investigations of Underground Coal Mining Problems. Washington, D.C.: U.S. Dept. of the Interior, 1975.
MLA (9th ed.) CitationMcCulloch, C. M., et al. Geologic Investigations of Underground Coal Mining Problems. U.S. Dept. of the Interior, 1975.
Warning: These citations may not always be 100% accurate.