POTTS, K.H / MACHELL, K. <br/><br/>
THE MANUAL SCREN PRESS:  For small-scale oil extraction 
KATHRYN H. POTTS / KEITH MACHELL  
 - LONDON  INTERMEDIATE TECHNOLOGY PUBLICATIONS  1995 
 - vii,64p.;ill.: 
<br/><br/><label>ISBN: </label>1853391980 
<br/><br/><label>LC Class. No.: </label>TJ1455.P5 1995