Smith, Ronald F. <br/><br/>
Multimedia assessment and environment research needs of the cement industry / 
Ronald F. Smith, James E. Levin and A. T. Kearney 
 - Washington, D.C. :  United States Government Printing Office,  1979 
 - ix, 82 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental health--Research--United States
<br/><br/><label>Dewey Class. No.: </label>336.1850973