Jensen, Cecil Fundamentals of engineering drawing / Cecil Jensen and Jay D. Helsel - 4th ed. - New York : McGraw-Hill, c1996. - xix, 480, [75] p. : ill. ; 28 cm. ISBN: 0028018001 LCCN: Subjects--Topical Terms: Mechanical drawingEngineering design LC Class. No.: T353 / .J47 1996 Dewey Class. No.: 604.2 / J52f