Head, G. O. (1993). The AutoCAD 3D companion: The illustrated guide to AutoCAD's third dimension. Chapel Hill, NC: Ventana Press.
Παραπομπή Chicago StyleHead, George O. The AutoCAD 3D Companion: The Illustrated Guide to AutoCAD's Third Dimension. Chapel Hill, NC: Ventana Press, 1993.
Παραπομπή MLAHead, George O. The AutoCAD 3D Companion: The Illustrated Guide to AutoCAD's Third Dimension. Chapel Hill, NC: Ventana Press, 1993.
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