Freidel, Frank
Over there : the story of Americas first great overseas crusade
McGraw-Hill, 1990
Buku Teks SO
Fredericks, Pierce
The great adventure : America in the first world war
E.P. Dutton, 1960
Buku Teks SO
Billington, Ray Allen
Westward expansion
Macmillan, 1967
Buku Teks SO
Hacker, Louis M.
The triumph of American capitalism : the development of forces in American history to the beginning of the twentieth century
McGraw-Hill, 1965
Buku Teks SO
Weaver, John D.
The Great experiment
Little, Brown, 1965
Buku Teks