edited by Andrei Oțetea
Scientific Publishing Hoose, 1970
Buku Teks
July, Robert W
Charles Scribner's, 1970
Buku Teks
Green, J.R.
London Dent 1915
Buku Teks
Zinn, Howard
HarperCollins Publishers, 2005
Buku Teks
Haley, Elie
Pelican Book, 1937
Buku Referensi