APA (7th ed.) Citation

Autodesk, I. (1990). AutoCAD Release 12: Reference manual. Autodesk Inc.

Chicago Style (17th ed.) Citation

Autodesk, Inc. AutoCAD Release 12: Reference Manual. Autodesk Inc, 1990.

MLA (8th ed.) Citation

Autodesk, Inc. AutoCAD Release 12: Reference Manual. Autodesk Inc, 1990.

Warning: These citations may not always be 100% accurate.