German Clarence B. <br/><br/>
Programacion IBM 1620 

 - Mexico:Limusa. 
 - 188p./30cm. 
<br/><br/> 1.ibm 1620 
<br/><br/><label>LC Class. No.: </label>QA76.8 I12 G373 
<br/><br/><label>Dewey Class. No.: </label>001.642 G565p