BOLTON, W. (2001). ENGINEERING MATERIALS TECHNOLOGY 3 ED. BUTTERWORTH.
Lua i Stíl Chicago (17ú heag.)BOLTON, W. ENGINEERING MATERIALS TECHNOLOGY 3 ED. DELHI: BUTTERWORTH, 2001.
Lua MLA (9ú heag.)BOLTON, W. ENGINEERING MATERIALS TECHNOLOGY 3 ED. BUTTERWORTH, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.