Walker William Francis  1902 <br/><br/>
Guide to industrial hydraulics / 
[by] W. F. Walker and G. N. Sellors. 
 - London,  Newnes-Butterworths,  1972. 
 - [10], 171 p.  illus.  19 cm. 
<br/><br/><label>ISBN: </label>0408000813 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fluid power technology<br/>Oil hydraulic machinery
<br/><br/><label>LC Class. No.: </label>TJ838