McGraw-Hill Companies. McGraw-Hill School Division. National Geographic Society (U.S.). Educational Services & Moyer, R. On the move (Macmillan/McGraw-Hill edition.).
Lua i Stíl Chicago (17ú heag.)McGraw-Hill Companies. McGraw-Hill School Division. National Geographic Society (U.S.). Educational Services agus Richard Moyer. On the Move. Macmillan/McGraw-Hill edition.
Lua MLA (8ú heag.)McGraw-Hill Companies. McGraw-Hill School Division. National Geographic Society (U.S.). Educational Services agus Richard Moyer. On the Move. Macmillan/McGraw-Hill edition.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.