Southwestern Company & Hughes, J. (1997). Student handbook: Desk reference. Southwestern.
Lua i Stíl Chicago (17ú heag.)Southwestern Company agus James Hughes. Student Handbook: Desk Reference. Nashville, TN: Southwestern, 1997.
Lua MLA (9ú heag.)Southwestern Company agus James Hughes. Student Handbook: Desk Reference. Southwestern, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.