Cita APA (7th ed.)

Burrows, W. E., & Langford, J. D. (2000). Programming business applications with Microsoft Visual Basic 6.0. McGraw-Hill.

Cita Chicago (17th ed.)

Burrows, William E., i Joseph D. Langford. Programming Business Applications with Microsoft Visual Basic 6.0. Boston: McGraw-Hill, 2000.

Cita MLA (8th ed.)

Burrows, William E., i Joseph D. Langford. Programming Business Applications with Microsoft Visual Basic 6.0. McGraw-Hill, 2000.