Cita APA

French, T. E., & Helsel, J. D. (2003). Mechanical drawing: Board and CAD techniques (13th ed.). McGraw-Hill.

Citación estilo Chicago

French, Thomas E., and Jay D. Helsel. Mechanical Drawing: Board and CAD Techniques. 13th ed. New York: McGraw-Hill, 2003.

Cita MLA

French, Thomas E., and Jay D. Helsel. Mechanical Drawing: Board and CAD Techniques. 13th ed. McGraw-Hill, 2003.