Klein, Josephine, 1926-, author
Routledge and Kegan Paul, 1956
Buku Teks
edited by Graham S. Gibbard, John J. Hartman, Richard D. Mann
Jossey-Bass, 1976
Buku Teks
Little, Brown and Co., 1959
Buku Teks
Ministry of Finance and Economy, 1997
Buku Teks
Kingson, Charles I
Aspen Law ,
Buku Teks