Dulles, Foster Rhea
Twentieth century America
Houghton-Mifflin, 1945
Buku Teks
The New Feminism in twentieth-century america
Buku Teks
Tallack, Douglas
Twentieth-century America : the intellectual and cultural context/ Douglas, Tallack.
Longman, 1991
Buku Teks
Twentieth century America : selected readings : volume II, 1929 to the present
edited by E. David Cronon
Dorsey Press, 1966
Buku Teks
Education and social structure in the twentieth century / edited by Walter Laqueur & George L. Mosse
Harper , 1967
Buku Teks