Gore, A. (1993). Earth in the Balance: Ecology and the human spirit. Penguin Books.
Chicago-čujuhus (17. p.)Gore, Albert. Earth in the Balance: Ecology and the Human Spirit. New York: Penguin Books, 1993.
MLA-čujuhus (9. p.)Gore, Albert. Earth in the Balance: Ecology and the Human Spirit. Penguin Books, 1993.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.