Cita APA (7th ed.)

Earle, J. H. (1973). Engineering design graphics (2.).

Cita Chicago (17th ed.)

Earle, James H. Engineering Design Graphics. 2. Reading, Mass. : Addison-Wesley, 1973.

Cita MLA (9th ed.)

Earle, James H. Engineering Design Graphics. 2. 1973.