RAO P N. (2013). MANUFACTURING TECHNOLOGY METALCUTTING AND MACHINE TOOLS (3rd.). MC GRAW HILL.
Lua i Stíl Chicago (17ú heag.)RAO P N. MANUFACTURING TECHNOLOGY METALCUTTING AND MACHINE TOOLS. 3rd. NEW DELHI: MC GRAW HILL, 2013.
Lua MLA (9ú heag.)RAO P N. MANUFACTURING TECHNOLOGY METALCUTTING AND MACHINE TOOLS. 3rd. MC GRAW HILL, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.