Liebhafsky, H.H., author
Dorsey Press, 1965
Buku Teks
Stigler, George J., author
Macmillan, 1957, c.1942
Buku Teks
Stigler, George J., author
Macmillan, 1966
Buku Teks
Csikos-Nagy, Bela, author
Akademiai Kiado, 1975
Buku Teks
Stigler, George J., author
Macmillan, 1942
Buku Teks