Held, Gilbert <br/><br/>
IBM PC & PC XT: User's reference manual 

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 - BPB Pubilications, New Delhi  1987 
 - 479 
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital Microcomputers or Microprocessors; Computer science
<br/><br/><label>Dewey Class. No.: </label>004.16  HEL-I