Black, C. E. (1962). Our world history. Ginn & Co..
Lua i Stíl Chicago (17ú heag.)Black, Cyril Edwin. Our World History. Boston ; New York [etc.]: Ginn & Co., 1962.
Lua MLA (8ú heag.)Black, Cyril Edwin. Our World History. Ginn & Co., 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.