Routunda, Ronald D.
West, 2007
Buku Teks
Dodd, Walter Fairleigh, 1880-1960, author
West Publishing, 1949
Buku Teks
Lockhart, William B., author
West , 1967
Buku Teks
Cushman, Robert E., author
Appleton-Century-Crofts, 1963
Buku Teks
Cushman, Robert F., author
Appleton-Century-Crofs, 1955
Buku Teks