APA (7th ed.) Citation

Watson, P. J., Tuzinski,m Patrick A., & Pahlman, J. E. Improved drilling of coal measure rocks for underground mine void detection and exploration programs. Bureau of Mines, U.S. Dept. of the Interior.

Chicago Style (17th ed.) Citation

Watson, Pamela J., Tuzinski,m Patrick A, and John E. Pahlman. Improved Drilling of Coal Measure Rocks for Underground Mine Void Detection and Exploration Programs. [Washington, D.C.]: Bureau of Mines, U.S. Dept. of the Interior.

MLA (9th ed.) Citation

Watson, Pamela J., et al. Improved Drilling of Coal Measure Rocks for Underground Mine Void Detection and Exploration Programs. Bureau of Mines, U.S. Dept. of the Interior.