Jensen, Cecil Fundamentals of engineering drawing / Cecil Jensen, Jay D. Helsel - 4th ed. - New York : Glencoe/McGraw-Hill, c1996 - xix, 480, [76] p. : ill. ; 28 cm. ISBN: 0028018001 Subjects--Topical Terms: Engineering drawingsMechanical drawing Dewey Class. No.: 604.2 / J54F