Hygiene and food production 

 - ix,176pg.  Longman group ltda  Longman group ltdb  Longman group ltdc  1971 
 - ix,176pg.  ill, 
<br/><br/><label>ISBN: </label>0700015213 
<br/><br/><label>LC Class. No.: </label>MED RA601  / F6