Earle, James H. Graphics for engineers with CADKEY / James H. Earle. - Reading, Mass. : Addison-Wesley, c1991. - 541 p. : ill. (some col.), maps . ISBN: 0201530599 LCCN: 92024024 Subjects--Uniform Titles: CADKey Subjects--Topical Terms: CADKEY (Computer system)Computer graphics