Haag, Stephen.
Computing concepts : complete edition / Stephen Haag, Maeve Cummings, Alan I. Rea. - 2nd ed. - McGraw-Hill Technology Education 2004.
11373
Electronic data processing.
QA76 / Haa.
Computing concepts : complete edition / Stephen Haag, Maeve Cummings, Alan I. Rea. - 2nd ed. - McGraw-Hill Technology Education 2004.
11373
Electronic data processing.
QA76 / Haa.