Hartman, G. (1943). The world we live in and how it came to be: A pictured outline of man's progress from the earliest days to the present ; with many illustrations from contemporary sources (Repr.). Macmillan.
Chicago-Zitierstil (17. Ausg.)Hartman, Gertrude. The World We Live in and How It Came to Be: A Pictured Outline of Man's Progress from the Earliest Days to the Present ; with Many Illustrations from Contemporary Sources. Repr. New York: Macmillan, 1943.
MLA-Zitierstil (9. Ausg.)Hartman, Gertrude. The World We Live in and How It Came to Be: A Pictured Outline of Man's Progress from the Earliest Days to the Present ; with Many Illustrations from Contemporary Sources. Repr. Macmillan, 1943.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.