Hald, Earl C., author
Houghton-Mifflin, 1954
Buku Teks
Hamberg, Daniel, author
Macmillan, 1951
Buku Teks
Achinstein, Asher, author
Thomas Y. Crowell, 1950
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