Achinstein, Asher, author
Thomas Y. Crowell, 1950
Buku Teks
selected by a committee of the American Economic Association
Blakiston, 1951
Buku Teks
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