Szymanski, Roberto A. <br/><br/>Computers and Applicatins Software:  Second Edition   -- 2nd  -- Unit  Macmillan Publishing Company ,  1991. <br/><br/> Indexies <br/><br/><label>ISBN: </label>9780675212694 <br/><br/><label>Dewey Class. No.: </label>Cir 005.3 C738 1991