Buchanan, R. L. (1995). Structured programming in dBase IV: Version 2.0 (2nd ed.). Belmont, Calif.: Wadsworth.
Trích dẫn kiểu ChicagoBuchanan, Robert L. Structured Programming in DBase IV: Version 2.0. 2nd ed. Belmont, Calif.: Wadsworth, 1995.
Deismireacht MLABuchanan, Robert L. Structured Programming in DBase IV: Version 2.0. 2nd ed. Belmont, Calif.: Wadsworth, 1995.
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