APA (7th ed.) Citation

(1999). AutoCAD architectural desktop, release 2: User's guide. Autodesk.

Chicago Style (17th ed.) Citation

AutoCAD Architectural Desktop, Release 2: User's Guide. San Rafael: Autodesk, 1999.

MLA (9th ed.) Citation

AutoCAD Architectural Desktop, Release 2: User's Guide. Autodesk, 1999.