Walters,R.B <br/><br/>
Hydraulic and electro-hydraulic control systems 
By R.B.Walters 
 - Newyork  Elsvier applied science  1991 
 - ix,251p. 
<br/><br/> Include Index 
<br/><br/><label>ISBN: </label>1851665560 
<br/><br/><label>Dewey Class. No.: </label>621.3  / WAL