KHURMI R S. (2005). THEORY OF MACHINES. S.CHAND & COMPANY LTD.
Lua i Stíl Chicago (17ú heag.)KHURMI R S. THEORY OF MACHINES. NEW DELHI: S.CHAND & COMPANY LTD, 2005.
Lua MLA (9ú heag.)KHURMI R S. THEORY OF MACHINES. S.CHAND & COMPANY LTD, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.