O'Leary, T. J. (2006). Computing essentials 2006. Boston: McGraw-Hill Technology Education.
Trích dẫn kiểu ChicagoO'Leary, Timothy J. Computing Essentials 2006. Boston: McGraw-Hill Technology Education, 2006.
Deismireacht MLAO'Leary, Timothy J. Computing Essentials 2006. Boston: McGraw-Hill Technology Education, 2006.
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