Frenzel, Louis E. <br/><br/>
Digital counter handbook / 
by Louis E. Frenzel, Jr. 
 - Indianapolis, Ind. :  H. W. Sams,  1981. 
 - 264 p. :  ill. ;  22 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital counters.<br/>Electronic instruments, Digital.