Gurewich, N., & Gurewich, O. (1995). Master Visual Basic 4. Sama Publishing.
Lua i Stíl Chicago (17ú heag.)Gurewich, Nathan, agus Ori Gurewich. Master Visual Basic 4. Indianapolis: Sama Publishing, 1995.
Lua MLA (9ú heag.)Gurewich, Nathan, agus Ori Gurewich. Master Visual Basic 4. Sama Publishing, 1995.
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