Bolton, W. (2006). Mechanical science (Third edition.). Blackwell Publishing.
Lua i Stíl Chicago (17ú heag.)Bolton, W. Mechanical Science. Third edition. Oxford ; Malden, Massachusetts: Blackwell Publishing, 2006.
Lua MLA (9ú heag.)Bolton, W. Mechanical Science. Third edition. Blackwell Publishing, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.