Heinrich, E. W. (1948). Deposits of the sillimanite group of minerals south of Ennis, Madison County: With notes on other occurrences in Montana. Montana School of Mines.
Chicago Style (17th ed.) CitationHeinrich, E. William. Deposits of the Sillimanite Group of Minerals South of Ennis, Madison County: With Notes on Other Occurrences in Montana. Butte: Montana School of Mines, 1948.
MLA (8th ed.) CitationHeinrich, E. William. Deposits of the Sillimanite Group of Minerals South of Ennis, Madison County: With Notes on Other Occurrences in Montana. Montana School of Mines, 1948.
Warning: These citations may not always be 100% accurate.