Parr, Andrew <br/><br/>
Hydraulics and pneumatics :  a technician's and engineer's guide / 
Andrew Parr. 
 - Oxford :  Butterworth Heinemann,  1992. 
 - viii, 223 p. :  ill. ;  24cm.  
<br/><br/><label>ISBN: </label>0750607939 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pneumatic engineering<br/>Hydraulic engineering