Buggey, J. (1976). The energy crisis. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Buggey, Joanne. The Energy Crisis. Prentice Hall, 1976.
Lua MLA (9ú heag.)Buggey, Joanne. The Energy Crisis. Prentice Hall, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.