Why, When, and how to Make Ventilation Surveys of Metal Mines George Edward McElroy Published: 1928 Total Pages: 12 Get eBook
Technical Paper - Bureau of Mines United States. Bureau of Mines Published: 1946 Total Pages: 964 Get eBook
Engineering Factors in the Ventilation of Metal Mines George Edward McElroy Published: 1935 Total Pages: 216 Get eBook
Historical Résumé of Mine and Tunnel Ventilation Studies, Bureau of Mines, 1910-49 George Edward McElroy Published: 1950 Total Pages: 22 Get eBook
Bibliography of Bureau of Mines Publications Dealing with Health and Safety in the Mineral and Allied Industries, 1910-46 Sara Jeannette Davenport Published: 1948 Total Pages: 160 Get eBook
Bibliography of Bureau of Mines Publications Dealing with Health and Safety in the Mineral and Allied Industries United States. Bureau of Mines Published: 1946 Total Pages: 202 Get eBook
