Bowman,Valcar A. <br/><br/>
Professional Environmental Management & Auditing 
Dr.Valcar A.Bowman 
 - 3rd ed. 
 - USA  CAHNERS  1992. 
 - 232p. 
<br/><br/> H.B 
<br/><br/><label>ISBN: </label>0934165349 
<br/><br/><label>Dewey Class. No.: </label>658.4095 BOW