APA (7th ed.) Citation

Smith, C., & Amundsen, M. (1999). Database programming with Visual BASIC 6 in 21 days. Sams Publishers.

Chicago Style (17th ed.) Citation

Smith, Curtis, and Michael Amundsen. Database Programming with Visual BASIC 6 in 21 Days. United States: Sams Publishers, 1999.

MLA (9th ed.) Citation

Smith, Curtis, and Michael Amundsen. Database Programming with Visual BASIC 6 in 21 Days. Sams Publishers, 1999.