Freedman, R. W., Humphrey, W. G., & Craft, R. L. (1975). Use of vacutainers for collection of mine atmosphere samples. U.S. Dept. of the Interior, Bureau of Mines.
Chicago Style (17th ed.) CitationFreedman, Robert W., William G. Humphrey, and Robert L. Craft. Use of Vacutainers for Collection of Mine Atmosphere Samples. [Washington]: U.S. Dept. of the Interior, Bureau of Mines, 1975.
MLA (9th ed.) CitationFreedman, Robert W., et al. Use of Vacutainers for Collection of Mine Atmosphere Samples. U.S. Dept. of the Interior, Bureau of Mines, 1975.
Warning: These citations may not always be 100% accurate.