Stavrianos, Leften Stavros, author
Allyn and Bacon, 1967
Buku Teks
Allyn and Bacon, 1966
Buku Teks
Holdren, John P., author
California Institute of Technology , 1973
Buku Teks
Carey, Peter, author
University of Queensland, 1987
Buku Teks
Leaf, Murray J.
Columbia University Press, 1979
Buku Teks