Hartkemeier, Harry P. <br/><br/>
Punch- Card Methods 

 - 1952. 
 - [s.l]:  WM.C. Brown Company ,  1952. 
 - X;360p. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Statistics, Sorting Mechines,The Electronic Statistical Machine, Type 101.
<br/><br/><label>Dewey Class. No.: </label>My A5