Explosives in Agriculture Lumbering Forestry 

 - Atlas Powder Company  U.S.A. 
 - 60p.  fig., ill. 
<br/><br/><label>Nat. Bib. No.: </label>1633 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>634.0  / EXP