Levens, A. (1980). Graphics in Engineering Design (3a ed.). John Wiley & Sons.
Chicago Style (17th ed.) CitationLevens, Alexander. Graphics in Engineering Design. 3a ed. New York: John Wiley & Sons, 1980.
MLA (9th ed.) CitationLevens, Alexander. Graphics in Engineering Design. 3a ed. John Wiley & Sons, 1980.
Warning: These citations may not always be 100% accurate.