APA (7th ed.) Citation

Microsoft Corporation. (1989). Microsoft operating system/2 programmer's reference: Version 1.1. Microsoft Press.

Chicago Style (17th ed.) Citation

Microsoft Corporation. Microsoft Operating System/2 Programmer's Reference: Version 1.1. Redmond, Wash.: Microsoft Press, 1989.

MLA (9th ed.) Citation

Microsoft Corporation. Microsoft Operating System/2 Programmer's Reference: Version 1.1. Microsoft Press, 1989.