Burrows, W. E., & Langford, J. D. (1998). Programming business applications with microsoft visual basic: Version 5.0 (2nd ed.). Irwin.
Chicago-čujuhus (17. p.)Burrows, William E., juo Joseph D. Langford. Programming Business Applications with Microsoft Visual Basic: Version 5.0. 2nd ed. Boston: Irwin, 1998.
MLA-čujuhus (9. p.)Burrows, William E., juo Joseph D. Langford. Programming Business Applications with Microsoft Visual Basic: Version 5.0. 2nd ed. Irwin, 1998.
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