Barnes, Harry Elmer
The University of Chicago Press, 1948
Buku Teks
edited by Harry Elmer Barnes
The University of Chicago Press, 1958
Buku Teks
Cambridge University Press, 2017
eBooks
Schrag, Clarence C.
Harper & Row, 1963
Buku Teks
Zanden, James W. Vander
John Wiley & Sons, 1979
Buku Teks