Oberman, R. M. M. <br/><br/>
Counting and counters / 
R. M. M. Oberman. 
 - London :  The Macmillan Press Ltd.  1981. 
 - xii, 171 p. :  ill. ;  24 cm. 
<br/><br/> 'A Halsted Press book.' 
<br/><br/>
<br/><br/><label>ISBN: </label>033305124 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Counting circuits.