Making ventilation-pressure surveys with altimeters

Author:	McElroy, G. E.
Additional Authors:	Kingery, D. S.
Year:	1957
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7809
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	7809
Subjects:	Mine ventilation
	Pressure--Measurement
	Altimeter
Link:	https://hdl.handle.net/2027/mdp.39015078459842