Cita APA (7a ed.)
Jensen, C., & Helsel, J. D. (1990). Engineering drawing and design (4th ed.). Glencoe.
Cita Chicago Style (17a ed.)
Jensen, Cecil, y Jay D. Helsel. Engineering Drawing and Design. 4th ed. New York: Glencoe, 1990.
Cita MLA (9a ed.)
Jensen, Cecil, y Jay D. Helsel. Engineering Drawing and Design. 4th ed. Glencoe, 1990.
Precaución: Estas citas no son 100% exactas.