Particle sizes in slash fire smoke / 
David V.Sandberg and Robert E. Martin 
 - Washington :  United States Government Printing Office,  1975 
 - 6 p. ;  21 cm. 
 - USDA forest research paper PNW ;  no. 199 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air Pollution
<br/><br/><label>Dewey Class. No.: </label>363.7392