Southworth, G. V. D., & Southworth, J. V. D. (1934). America's old world background: The myths of the Greeks and Norsemen, the story of early man, and the history of the old world from the dawn of civilization through the period of exploration. Iroquois.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Southworth, Gertrude Van Duyn, và John Van Duyn Southworth. America's Old World Background: The Myths of the Greeks and Norsemen, the Story of Early Man, and the History of the Old World from the Dawn of Civilization Through the Period of Exploration. Syracuse, N.Y.: Iroquois, 1934.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Southworth, Gertrude Van Duyn, và John Van Duyn Southworth. America's Old World Background: The Myths of the Greeks and Norsemen, the Story of Early Man, and the History of the Old World from the Dawn of Civilization Through the Period of Exploration. Iroquois, 1934.