New York Frederick A. Praeger 1962
Buku Teks
Crosland, Anthony, 1918-, author
Macmillan, 1957
Buku Teks
Sinclair, William Angus
Robert Hale, 1955
Buku Teks
Von Mises, Ludwig, 1881-1973, author
Bradford and Dickens, 1953
Buku Teks
Agh, Attila, author
Hungarian Centre for Democracy Studies , 2003
Buku Teks