Hrabik, J. A., & Godesky, D. J. (1983). Economic evaluation of borehole and conventional mining systems in phosphate deposits. U.S. Dept. of the Interior, Bureau of Mines.
Chicago Style (17th ed.) CitationHrabik, Joseph A., and Douglas J. Godesky. Economic Evaluation of Borehole and Conventional Mining Systems in Phosphate Deposits. [Washington]: U.S. Dept. of the Interior, Bureau of Mines, 1983.
MLA (9th ed.) CitationHrabik, Joseph A., and Douglas J. Godesky. Economic Evaluation of Borehole and Conventional Mining Systems in Phosphate Deposits. U.S. Dept. of the Interior, Bureau of Mines, 1983.
Warning: These citations may not always be 100% accurate.