Lua APA (7ú heag.)
Williams, J. (2008). Engineering tribology. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)
Williams, John. Engineering Tribology. New York: Cambridge University Press, 2008.
Lua MLA (9ú heag.)
Williams, John. Engineering Tribology. Cambridge University Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.