Chopra, S. B. (1989). Dictionary of mechanical engineering. Anmol Publications.
Lua i Stíl Chicago (17ú heag.)Chopra, S. B. Dictionary of Mechanical Engineering. New Delhi: Anmol Publications, 1989.
Lua MLA (9ú heag.)Chopra, S. B. Dictionary of Mechanical Engineering. Anmol Publications, 1989.
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