Parr, Andrew. <br/><br/>
Hydraulics and penumatics : a technician's and engineer's guide  [Books]. 
Andrew Parr. 
 - Oxford :   Butterworth - Heinemann,   1991. 
 - viii, 223 p. :  ill. ;  24cm. 
<br/><br/><label>ISBN: </label>0750607939 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydraulics.<br/>Penumatics.