Waldheim, Charles, author
Princeton University Press, 2016
Buku Teks
University of Pennsylvania Press, 2002
Buku Teks
Traub, J.F., author
Academic Press, 1980
Buku Teks
Gratzer, George, author
Academic Press, 1978
Buku Teks
Boulding, Kenneth E. (Kenneth Ewart), 1910-1993, author
Harper, 1963
Buku Teks