QUAMMEN, David, "The Cats that Fly by Themselves." Outside 19.1 (1994): 25-29.

"The Disappeared." Outside 16.4 (1991): 31-32; 34; 36; 38; 40.

"The Economy of Nature." Outside 17.2 (1992): 25-26; 28; 30; 32; 34. .Estudo sobre o ecoturismo

"The Elusive Creatures of Madagascar." Outside 15.4 (1990): 62-66; 68; 128-129.

"The White Tigers of Cincinnati." Outside 16.9 (1991): 35-36; 38; 40; 42; 45.

QUINBY, Lee. "Ecofeminism and the Politics of Resistance." Reweaving the World: The Emergence of Ecofeminism. an Francisco: Sierra Club Books, 1990.