George O Head Jan Doster Head. (1990). Thousand AutoCAD tips and tricks: Covers through AutoCAD release 13 for DOS and Windows. Galgotia publications.
Chicago Edition CitationGeorge O Head Jan Doster Head. Thousand AutoCAD Tips and Tricks: Covers Through AutoCAD Release 13 for DOS and Windows. New Delhi: Galgotia publications, 1990.
MLA Edition CitationGeorge O Head Jan Doster Head. Thousand AutoCAD Tips and Tricks: Covers Through AutoCAD Release 13 for DOS and Windows. Galgotia publications, 1990.
Warning: These citations may not always be 100% accurate.