Jones, E., & Nesbitt, D. (1993). FoxPro 2.5 for DOS: The complete reference. Osborne McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Jones, Edward, agus David Nesbitt. FoxPro 2.5 for DOS: The Complete Reference. Berkeley: Osborne McGraw-Hill, 1993.
Lua MLA (9ú heag.)Jones, Edward, agus David Nesbitt. FoxPro 2.5 for DOS: The Complete Reference. Osborne McGraw-Hill, 1993.
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