Greerts, W.  <br/><br/>
Working with a slide rule :  a programmed text / 
W. Greerts ; translated by C. Van Walraven. 
 - New Delhi :  Oxford and IBS publishing co.,  c 1969. 
 - ix, 39 p. :  Ill. ;  23 cm. 
<br/><br/>340  340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Slide-rule-- Programmed instruction.
<br/><br/><label>Dewey Class. No.: </label>510.7823 / G271w