Serdy, Andrew, author
Cambridge University Press, 2016
Buku Teks
Riesenfeld, Stefan A.
Carnegie Endowment for International Peace, 1942
Buku Teks
Winship, Peter, author
St.paul Minn, 2000
Buku Teks
Spanogle, John A., author
St. Paul Minn, 2000
Buku Teks
Leonard, Leonard L. (Leonard Larry), 1916-, author
Johnson Reprint Corporation, 1971
Buku Teks