Methane analyzer system to record continuously the methane content of coal mine ventilation air.  by Meherwan C. Irani, P.W. Heran and D.H. Lawhead
Contributors: Heran, P.W.; Lawhead, D.H.
Publisher: U.S. Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 14
Notes: 11