SPOTTS, M. (1985). Design of machine elements. ed.-- 6. Prentice-Hall of India.
Lua i Stíl Chicago (17ú heag.)SPOTTS, M.F. Design of Machine Elements. Ed.-- 6. New Delhi: Prentice-Hall of India, 1985.
Lua MLA (9ú heag.)SPOTTS, M.F. Design of Machine Elements. Ed.-- 6. Prentice-Hall of India, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.