Gleeson, Brendan, 1964- author
Routledge, 2014
Buku Teks
Newland, Kathleen
Worldwatch Institute, 1980
Buku Teks
M.I.T. Press and Harvard University, 1963
Buku Teks
Bergel, Egon Ernest
McGraw-Hill, 1955
Buku Teks
Kunstler, James Howard
The Free Press, 2001
Buku Teks