Most Popular Books
- Human Nature in Geography: Fourteen Papers, 1925-1965
- The Geographical Lore of the Time of the Crusades; a Study in the History of Medieval Science and Tradition in Western Europe
- Aids to Geographical Research: Bibliographies, Periodicals, Atlases, Gazetteers, and Other Reference Books (American Geographical Society. Research Series)
- The Leardo map of the world,: 1452 or 1453, in the collections of the American geographical society,
- Geography in the Making
