NCOS1 COBOL 2  MSP06E-9 

 -  Tokyo  : NEC  1986 
 - 562 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NCOS1  operating system : COBOL
<br/><br/><label>Dewey Class. No.: </label>519.68/12  / NS