Norton, P. (1987). Peter Norton's DOS guide (Rev. & expanded.). Brady : Distributed by Prentice Hall Trade.
Παραπομπή Chicago StyleNorton, Peter. Peter Norton's DOS Guide. Rev. & expanded. New York, N.Y.: Brady : Distributed by Prentice Hall Trade, 1987.
Παραπομπή MLANorton, Peter. Peter Norton's DOS Guide. Rev. & expanded. Brady : Distributed by Prentice Hall Trade, 1987.
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