The United Stated Capital Historical Society,, 1964
Buku Teks
with introduction by Harold Earl Hammond
Cambridge Book, 1964
Buku Teks
Odum, Howard W., author
Longmans Green, 1951
Buku Teks
Odum, Howard W., author
Longmans Green, 1951
Buku Teks
Mitchell, Broadus, author
Oxford University Press, 1964
Buku Teks