Karl Marx
1853 · Very good
€55
Peter Kropotkin
1893 · Good
€90
Edmond Dupouy
1899 · Very good · NL
€105
Jan Jacob Bruins
1935 · Very good · NL
€45
Jack London
1927 · Fine
€145
W. G. Stimpson
1928 · Fair
€15
Abraham Kuyper
1889 · Good · NL
€110
Abraham Kuyper
1907 · Very good · NL
€30
Booker T. Washington
1919 · Fine
€105
Robert Tressell
1917 · Good
€30
Henry Mayhew
1869 · Good
€70
Abraham Kuyper
1880 · Fine · NL
€110
Abraham Kuyper
1880 · Good · NL
€100
William Dean Howells
1900 · Good
€35
Council on Pharmacy and Chemistry (American Medical Association)
1935 · Good
€35
Mark F. Boyd
1926 · Very good
€25
Seymour Dunbar
1919 · Fair
€20
Charles Elam
1869 · Good
€40
Israel Zangwill
1902 · Good
€105
Gilbert Keith Chesterton, CrossReach Publications
1918 · Good
€50
Lydia Maria Child
1872 · Fair
€25
S. Stepniak
1899 · Fair
€80
Theodore Parker
1884 · Good
€45
Augustin Lodewyckx
1935 · Good · NL
€55
Walter Kerr
1911 · Good
€20
Ernst Troeltsch
1916 · Very good
€55
Paul Louis Mulder
1909 · Good · NL
€45
Eduard Andries
1901 · Very good · NL
€75
Peter Kropotkin
1903 · Fair
€15
Den, Tex, C.J.
1893 · Very good · NL
€210
W. J. Hofdijk
1863 · Very good · NL
€55
Isador H. Coriat
1935 · Very good
€105
University of Chicago. Press.
1913 · Good
€50
Georgiĭ Valentinovich Plekhanov
1899 · Very good
€145
John Stuart Mill
1891 · Very good
€65
Netherlands. Ministerie van Binnenlandse Zaken
1893 · Fine · NL
€230
Hendrik Blink
1925 · Fair · NL
€20
Eileen Edna Power
1933 · Good
€40
Hendrik Blink
1921 · Very good · NL
€30
Otto van Rees
1857 · Very good · NL
€95
B. P. Ponsioen
1935 · Very good · NL
€30
Edwin Checkley
1890 · Good
€50
Dirk Hudig
1908 · Very good · NL
€25
Thorstein Veblen
1921 · Good
€40
Worthington Hooker
1865 · Good
€50
Will Durant
1919 · Good
€50
George J. Engelmann
1927 · Fair
€35
Лев Толстой
1904 · Good
€85
Geoffrey Chaucer
1935 · Fine
€85
Abraham Kuyper
1905 · Very good · NL
€50
Harriet Mann Miller
1895 · Good
€50
M. Buys
1935 · Good · NL
€25
Agnes C. Laut
1920 · Good
€80
Cornelis Lekkerkerker
1935 · Fine · NL
€95
John Harvey Kellogg
1907 · Good
€40
G. Hartwig
1900 · Good
€25
Koninklijk Instituut voor de Taal-, Land- en Volkenkunde van Nederlandsch-Indië.
1893 · Good · NL
€80
Harriet Martineau
1858 · Very good
€165
Peter Kropotkin
1886 · Very good
€60
Friedrich Fröbel
1919 · Good
€20