Vinson, Robert P. <br/><br/>
Face ventilation measurement with sulfur hexafluoride (SF₆) / 
by Robert P. Vinson ... [et al.]. 
 - [Avondale, Md.] :  U.S. Dept. of the Interior, Bureau of Mines,  1980. 
 - 16 p. :  ill. ;  27 cm. 
 - Report of investigations ;  8473 .
 - Report of investigations (United States. Bureau of Mines) ;  8473. .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>80607771  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine ventilation--Measurement.<br/>Sulfur hexafluoride.
<br/><br/><label>LC Class. No.: </label>TN23  TN301  / .U43 no. 8473 
<br/><br/><label>Dewey Class. No.: </label>622 s  622/.42/0287