Author
ProQuest (Firm)
300
American Council of Learned Societies
20
Gale (Firm)
10
National Research Council (U.S.). Space Studies Board
10
Columbus, Christopher
8
Clark, William, 1770-1838
7
Hakluyt, Richard, 1552?-1616
7
Lewis, Meriwether, 1774-1809
7
Thwaites, Reuben Gold, 1853-1913
7
Hakluyt Society
6
Lach, Donald F. 1917-
6
Flint, Richard, 1946-
5
Project Muse
5
Barratt, Glynn
4
Bolton, Herbert Eugene, 1870-1953
4
Flint, Shirley Cushing
4
Maps.com (Firm)
4
National Research Council (U.S.)
4
National Research Council (U.S.). Division on Engineering and Physical Sciences
4
Núñez Cabeza de Vaca, Alvar, active 16th century
4
Perkins, Dennis N. T., 1942-
4
Quinn, David B.
4
Stanley, Henry M. 1841-1904
4
Stobbs, William
4
Syme, Ronald, 1910-1992
4
Beazley, C. Raymond 1868-1955
3
Casas, Bartolomé de las, 1484-1566
3
Champlain, Samuel de, 1574-1635
3
Dorris, Michael
3
Jeal, Tim
3
Major, Richard Henry, 1818-1891
3
Morison, Samuel Eliot, 1887-1976
3
National Academies Press (U.S.)
3
National Research Council (U.S.). Aeronautics and Space Engineering Board
3
Núñez Cabeza de Vaca, Alvar, 16th cent
3
Parry, J. H. 1914-1982
3
Prestage, Edgar, 1869-1951
3
Sauer, Carl Ortwin, 1889-1975
3
Scott, Elaine, 1940-
3
Sharp, Andrew, 1906-1974
3
Verne, Jules, 1828-1905
3
Winsor, Justin, 1831-1897
3
Adorno, Rolena
2
Ambrose, Stephen E.,
2
Axtell, James
2
Balkan, Evan, 1972-
2
Barr, William, 1940-
2
Behrendt, John C., 1932-
2
Bibliothèque et Archives nationales du Québec
2
Biesty, Stephen,
2
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