HOFEDITZ, C. (1979). EASY TO LEARN COMPUTERS AND DATA PROCESSING. VALCO PUB. CO.
Cita Chicago (17th ed.)HOFEDITZ, C.A. EASY TO LEARN COMPUTERS AND DATA PROCESSING. NEW YORK: VALCO PUB. CO, 1979.
Cita MLA (9th ed.)HOFEDITZ, C.A. EASY TO LEARN COMPUTERS AND DATA PROCESSING. VALCO PUB. CO, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.