Beer, Lawrence Ward
School of Law University of Maryland, 1978
Buku Teks
edited by Frederick H. Hartman
McGraw-Hill, 1951
Buku Teks
edited by Steven Muller
Macmillan, 1963
Buku Teks
Foreign Languages Press, 1955
Buku Teks
Institute of International Relations, National Chengchi University, 1978
Buku Teks