Brittain, James L., The autocad productivity book for releases 10, 11, 12 the non programmer's guide to customizing autocad/ James O. Brittain - Fifth (5th) edition - USA : Ventana Press ; 1993. - xxiii, 369 pages : figures, tables ; 22 cm. Includes Index. ISBN: 15666040264 Subjects--Topical Terms: AutoCAD. Dewey Class. No.: 620.004202855369 / B777a