Gillispie, Charles Coulston, author
Princeton University Press, 1960
Buku Teks
Sarton, George
Henry Schuman, 1948
Buku Teks
American Heritage Publishing, 1960
Buku Teks
Dampier, William Cecil
Cambridge University Press, 1989
Buku Teks
Butterfield, Herbert
The Free Press , 1957
Buku Teks