Occhiogrosso, J. (1994). Clipper power utilities. Windcrest/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Occhiogrosso, James. Clipper Power Utilities. New York: Windcrest/McGraw-Hill, 1994.
Lua MLA (9ú heag.)Occhiogrosso, James. Clipper Power Utilities. Windcrest/McGraw-Hill, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.