Freeman, E. A. (1876). General sketch of history: Adapted for American students (New ed. rev.). Henry Holt and Co..
Lua i Stíl Chicago (17ú heag.)Freeman, Edward Augustus. General Sketch of History: Adapted for American Students. New ed. rev. New York: Henry Holt and Co., 1876.
Lua MLA (8ú heag.)Freeman, Edward Augustus. General Sketch of History: Adapted for American Students. New ed. rev. Henry Holt and Co., 1876.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.