APA (7th ed.) Citation

Schmidt, L. D., Schroeder, W. C., & Fieldner, A. C. (1943). Increased pig-iron output through improved coke. U.S. Department of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Schmidt, L. D., W. C. Schroeder, and Arno Carl Fieldner. Increased Pig-iron Output Through Improved Coke. [Washington, D.C.]: U.S. Department of the Interior, Bureau of Mines, 1943.

MLA (9th ed.) Citation

Schmidt, L. D., et al. Increased Pig-iron Output Through Improved Coke. U.S. Department of the Interior, Bureau of Mines, 1943.