Bhattacharya, S. K., & Singh, B. (2006). Control of machines (Rev. 2nd ed.). New Age International (P) Ltd., Publishers.
Lua i Stíl Chicago (17ú heag.)Bhattacharya, S. K., agus Brijinder Singh. Control of Machines. Rev. 2nd ed. New Delhi: New Age International (P) Ltd., Publishers, 2006.
Lua MLA (9ú heag.)Bhattacharya, S. K., agus Brijinder Singh. Control of Machines. Rev. 2nd ed. New Age International (P) Ltd., Publishers, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.