Geological Survey (U.S.), Golightly, D. W., & Simon, F. O. (1989). Methods for sampling and inorganic analysis of coal. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), D. W. Golightly, and Frederick Otto Simon. Methods for Sampling and Inorganic Analysis of Coal. [Reston, Va.]: Dept. of the Interior, U.S. Geological Survey, 1989.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Methods for Sampling and Inorganic Analysis of Coal. Dept. of the Interior, U.S. Geological Survey, 1989.
Warning: These citations may not always be 100% accurate.