APA (7th ed.) Citation

Microsoft Corporation. (1998). Microsoft visual basic 6.0: Manual del programador. McGraw-Hill.

Chicago Style (17th ed.) Citation

Microsoft Corporation. Microsoft Visual Basic 6.0: Manual Del Programador. Madrid [etc.]: McGraw-Hill, 1998.

MLA (9th ed.) Citation

Microsoft Corporation. Microsoft Visual Basic 6.0: Manual Del Programador. McGraw-Hill, 1998.