Ackerman, C. (1990). Teach yourself dBase lll Plus. Osborne McGraw-Hill.
Chicago Style (17th ed.) CitationAckerman, Charles. Teach Yourself DBase Lll Plus. California: Osborne McGraw-Hill, 1990.
MLA (9th ed.) CitationAckerman, Charles. Teach Yourself DBase Lll Plus. Osborne McGraw-Hill, 1990.
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