DEC (Digital Equipment Corp) <br/><br/>
PDP II Software Handbook 

 -  Digital Equipment Corp,  1978 
 - xi, 533   ( R13, SH 03). 
<br/><br/><label>Source: </label> Hayat Muhammad Awan 
<br/><br/><label>Dewey Class. No.: </label>005.1330202