French, T. E. (1985). Mechanical drawing (10th ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)French, Thomas Ewing. Mechanical Drawing. 10th ed. New York: McGraw-Hill, 1985.
Lua MLA (9ú heag.)French, Thomas Ewing. Mechanical Drawing. 10th ed. McGraw-Hill, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.