Newman, Herbert E., author
John Wiley & Sons, 1968
Buku Teks
Hansen, Alvin H. (Alvin Harvey), 1887-1975, author
W.W. Norton, 1941
Buku Teks
Fraine, Harold G.
Richard D. Irwin, Inc. , 1962
Buku Teks
Merwin, Charles L.
National Bureau of Economic Research, Inc., 1942
Buku Teks
Stigler, George J.
Princeton University Press , 1963
Buku Teks