APA (7th ed.) Citation

Warner, S. L. (1998). Teach yourself Visual Basic 6. Osborne/McGraw-Hill.

Chicago Style (17th ed.) Citation

Warner, Scott L. Teach Yourself Visual Basic 6. Berkeley, CA: Osborne/McGraw-Hill, 1998.

MLA (8th ed.) Citation

Warner, Scott L. Teach Yourself Visual Basic 6. Osborne/McGraw-Hill, 1998.