RAO, P. (2010). MANUFACTURING TECHNOLOGY: FOUNDRY, FORMING & WELDING - VOL. 1. TMH.
Lua i Stíl Chicago (17ú heag.)RAO, P.N. MANUFACTURING TECHNOLOGY: FOUNDRY, FORMING & WELDING - VOL. 1. NEW DELHI: TMH, 2010.
Lua MLA (9ú heag.)RAO, P.N. MANUFACTURING TECHNOLOGY: FOUNDRY, FORMING & WELDING - VOL. 1. TMH, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.