APA (7th ed.) Citation

Leigh, R. W. (1989). AutoCAD: A concise guide to commands and features (1. ed., 1. printing.). Ventana Press.

Chicago Style (17th ed.) Citation

Leigh, Ronald W. AutoCAD: A Concise Guide to Commands and Features. 1. ed., 1. printing. Chapel Hill, NC: Ventana Press, 1989.

MLA (9th ed.) Citation

Leigh, Ronald W. AutoCAD: A Concise Guide to Commands and Features. 1. ed., 1. printing. Ventana Press, 1989.