Basic by Microsoft /  
International Business Machines Corporation. I.B.M. 
 - 2a. ed. 
 - EEUU :  IBM,  1983 
 - 600 p. :    c.a. ; ejem. ;    21 cm 
<br/><br/><label>LC Class. No.: </label> / M 37 
<br/><br/><label>Universal Decimal Class. No.: </label>800.92