Prentice-Hall, 1976
Buku Teks
Stanley, Joyce, 1901-, author
Warren, Gorham and Lamont, 1971
Buku Teks
by Stanley S. Survey ... [and others]
Foundation Press, 1972
Buku Teks
Pechman, Joseph A., author
Brookings Institution, 1987
Buku Teks
Pechman, Joseph A., author
Brookings Institution, 1971
Buku Teks