Sawyer, S. G., & Brogan, D. K. (1974). A testing procedure for the certification of underground protective cabs and canopies. U.S. Dept. of the Interior, Mining Enforcement and Safety Administration.
Chicago Style (17th ed.) CitationSawyer, Stephen G., and Darryl K. Brogan. A Testing Procedure for the Certification of Underground Protective Cabs and Canopies. [Washington]: U.S. Dept. of the Interior, Mining Enforcement and Safety Administration, 1974.
MLA (9th ed.) CitationSawyer, Stephen G., and Darryl K. Brogan. A Testing Procedure for the Certification of Underground Protective Cabs and Canopies. U.S. Dept. of the Interior, Mining Enforcement and Safety Administration, 1974.
Warning: These citations may not always be 100% accurate.