Levens, A. S. 1., & Chalk, W. (1980). Graphics in engineering design (3. edition.). New York, New York: J. Wiley.
Chicago Style CitationLevens, Alexander Sander 1900-, and William Chalk. Graphics in Engineering Design. 3. edition. New York, New York: J. Wiley, 1980.
MLA CitationLevens, Alexander Sander 1900-, and William Chalk. Graphics in Engineering Design. 3. edition. New York, New York: J. Wiley, 1980.
Warning: These citations may not always be 100% accurate.