(1991). Eastern hemisphere. Macmillan/McGraw Hill School Pub. Co..
Lua i Stíl Chicago (17ú heag.)Eastern Hemisphere. New York: Macmillan/McGraw Hill School Pub. Co., 1991.
Lua MLA (8ú heag.)Eastern Hemisphere. Macmillan/McGraw Hill School Pub. Co., 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.