APA (7th ed.) Citation

Sparks, A. W., Stein, R. L., & Stengel, J. W. (1980). A breathing metabolic simulator for testing respiratory protective equipment. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Sparks, Anthony W., R. L. Stein, and Jerry W. Stengel. A Breathing Metabolic Simulator for Testing Respiratory Protective Equipment. Pgh. [i.e. Pittsburrgh], Pa.: U.S. Dept. of the Interior, Bureau of Mines, 1980.

MLA (9th ed.) Citation

Sparks, Anthony W., et al. A Breathing Metabolic Simulator for Testing Respiratory Protective Equipment. U.S. Dept. of the Interior, Bureau of Mines, 1980.