Washburn, W. E. (1966). The age of discovery. American Historical Assoc., Service Center for Teachers of History.
Chicago-Zitierstil (17. Ausg.)Washburn, Wilcomb E. The Age of Discovery. Washington, DC: American Historical Assoc., Service Center for Teachers of History, 1966.
MLA-Zitierstil (9. Ausg.)Washburn, Wilcomb E. The Age of Discovery. American Historical Assoc., Service Center for Teachers of History, 1966.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.