Crawford, William R.
A century of Latin-American thought
Frederick A. Praeger, 1961
 Buku Teks
Growth of ideas knowledge thought imagination
Responsive Environments Corporation , 1968
 Buku Teks
Commager, Henry Steele, selector
The American mind : an interpretation of American thought and character the 1880's
Yale University Press, 1950
 Buku Teks
Williamson, Harold F.
The growth of the American economic
Prentice-Hall, 1951
 Buku Teks
Morison, Samuel Eliot
Growth of the American Republic
Oxford University Press, 1962
 Buku Teks