Ventilation questions and answers.
APA Citation
United States. Mine Safety and Health Administration. (1992). Ventilation questions and answers. [Washington, D.C.]: U.S. Department of Labor, Mines Safety and Health Administration.
MLA Citation
United States. Mine Safety and Health Administration. Ventilation Questions And Answers. [Washington, D.C.]: U.S. Department of Labor, Mines Safety and Health Administration, 1992.
Warning: These citations may not always be complete (especially for serials).