Diekelmann, John, author
University of Wisconsin Press, 1982
Buku Teks
Diekelmann, John, author
New York: McGraw-Hill, 1982
Buku Teks
Diekelmann, John, author
New York: McGraw-Hill, 1982
Buku Teks
Kreps, Juanita M., author
Wilson, 1955
Buku Teks
Youngquist, Walter
Ill. Dow Jones-Irwin , 1980
Buku Teks