The University of Nagoya Press, 1984
Buku Teks
Gershenson, Harry, author
Society of Actuaries, 1961
Buku Teks
United Nations
1986
Buku Teks
Cochrane, Susan H., author
World Bank, 1983
Buku Teks
Hansluwka, Harald, author
[Publisher not identified], 1986
Buku Teks