Guth, H. P. (1991). New concise handbook (2nd ed.). Wadsworth Pub. Co..
Lua i Stíl Chicago (17ú heag.)Guth, Hans Paul. New Concise Handbook. 2nd ed. Belmont, Calif.: Wadsworth Pub. Co., 1991.
Lua MLA (9ú heag.)Guth, Hans Paul. New Concise Handbook. 2nd ed. Wadsworth Pub. Co., 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.