Cita APA (7a ed.)

Levens, A. (1980). Graphics in Engineering Design (3a ed.). John Wiley & Sons.

Cita Chicago Style (17a ed.)

Levens, Alexander. Graphics in Engineering Design. 3a ed. New York: John Wiley & Sons, 1980.

Cita MLA (9a ed.)

Levens, Alexander. Graphics in Engineering Design. 3a ed. John Wiley & Sons, 1980.