by American Economic Association
Richard D. Irwin, 1951
Buku Teks
Mitchell, Wesley C., author
National Bureau of Economic Research, 1954
Buku Teks
Mitchell, Wesley C., author
National Bureau of Economic Researsch, 1930
Buku Teks
Estey, James Arthur, author
Prentice-Hall, 1950
Buku Teks
Estey, James Arthur, author
Prentice-Hall, 1949
Buku Teks