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unknown - Public Domain
Moffett, Chicago - Public Domain
Georges Biard - CC BY-SA 3.0
Lewis Clinton Strang - Public Domain
Nikita - CC BY-SA 2.5
Public Domain
not indicated - Public Domain
:en:Colgate University -
US Government Printing Office - Public Domain
Thuen - Public Domain
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unknown - Public Domain
Erlenborn, John Neal, 1927-2005
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Moffett, Chicago - Public Domain
Spearman, Frank H. (Frank Hamilton), 1859-1937
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Downs, Cathy, 1926-1976
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Eisenstadt, S. N. (Shmuel Noah), 1923-2010
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Dunstan, Donald
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Jackson, Peter, 1861-1901
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Georges Biard - CC BY-SA 3.0
Vincent, Hélène, 1940-...
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Lewis Clinton Strang - Public Domain
McDonald, Christie, 1875-1962
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Sawyer, Diane, 1945-
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Resnick, Michael D.
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Nikita - CC BY-SA 2.5
Ōshima, Nagisa, 1932-2013
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Riis, Bendik, 1911-1988
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Davison, Frederick Trubee, 1896-
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Booth, Mary L. (Mary Louise), 1831-1889
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Horneman, C.F.E. (Christian Frederik Emil), 1840-1906
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Davis, Thomas, 1814-1845
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Brockhaus, Hermann, 1806-1877
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Public Domain
Shapiro, Samuel H. (Samuel Harvey), 1907-1987
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DJ Krush
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Marie de Médicis, Queen, consort of Henry IV, King of France, 1573-1642
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unknown - Public Domain
Seiss, Joseph A. (Joseph Augustus), 1823-1904
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not indicated - Public Domain
Thomas, Vivien Theodore, 1910-1985
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unknown - Public Domain
Menius, Justus, 1499-1558
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:en:Colgate University -
Balakian, Peter, 1951-....
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Wolf, Lucien, 1857-1930
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Carpentier, Georges, 1894-1975
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Sheremetev, Boris Petrovich, graf, 1652-1719
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unknown - Public Domain
Bessels, Emil, 1847-1888
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US Government Printing Office - Public Domain
Gray, Kenneth J. (Kenneth James), 1924-
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Thuen - Public Domain
Andsnes, Leif Ove, 1970-....