Lua APA (7ú heag.)

Long, R. E. (1989). Energy and conservation. H.W. Wilson.

Lua i Stíl Chicago (17ú heag.)

Long, Robert Emmet. Energy and Conservation. New York: H.W. Wilson, 1989.

Lua MLA (9ú heag.)

Long, Robert Emmet. Energy and Conservation. H.W. Wilson, 1989.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.