Townsend, C. (1985). Aplique el dBASE II. McGraw-Hill.
Chicago Style (17th ed.) CitationTownsend, Carl. Aplique El DBASE II. Ciudad de México: McGraw-Hill, 1985.
MLA (9th ed.) CitationTownsend, Carl. Aplique El DBASE II. McGraw-Hill, 1985.
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