Lippincott, Isaac, author
Appleton Century Croffs, 1933
Buku Teks
introduction by Edward G. Smith
Barnes & Noble, 1966
Buku Teks
McLaughlin, Andrew C., author
Appleton Century Crofts, 1935
Buku Teks
Hacker, Louis M., author
Appleton-Century-Crofts, 1949
Buku Teks
Kahin, George McTurnan, author
Dial Press , 1967
Buku Teks