Henry, Clement M., 1937-, author
Cambridge University Press, 2010
Buku Teks
edited and with introductions by Charles Issawi
The University of Chicago Press, 1966
Buku Teks
Bullard, Reader
Oxford university Press, 1958
Buku Teks
Stocking, George W., author
Vanderbilt University Press, 1970
Buku Teks
International Bank for Reconstruction and Development , 1973
Buku Teks