Cita APA (7th ed.)

SPOTTS, M. (1985). Design of machine elements. ed.-- 6. Prentice-Hall of India.

Cita Chicago (17th ed.)

SPOTTS, M.F. Design of Machine Elements. Ed.-- 6. New Delhi: Prentice-Hall of India, 1985.

Cita MLA (9th ed.)

SPOTTS, M.F. Design of Machine Elements. Ed.-- 6. Prentice-Hall of India, 1985.