SHARMA P.C. (2009). A TEXT BOOK OF PRODUCTION ENGINEERING. S CHAND & CO LTD.
Lua i Stíl Chicago (17ú heag.)SHARMA P.C. A TEXT BOOK OF PRODUCTION ENGINEERING. NEW DELHI: S CHAND & CO LTD, 2009.
Lua MLA (9ú heag.)SHARMA P.C. A TEXT BOOK OF PRODUCTION ENGINEERING. S CHAND & CO LTD, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.