King, Alexander, author
Simon & Schuster, 1991
Buku Teks
Gabor, Dennis, author
Pergamon Press, 1978
Buku Teks
by Donella H. Meadows ... [and others]
Universe Books, 1972
Buku Teks
by Doneella H. Meadows ... [and others]
New American Library , 1972
Buku Teks
The Population Council, 1970
Buku Teks