Rocky Mountains.
Smithsonian, 2002. First edition, first printing.
Smithsonian, 2002. First edition, first printing.
W. W. Norton, 2015. First edition, first printing.
Editions Connaissance et Memories, 2006. First edition, first printing.
U. of Illinois Press, 1970. First edition, first printing.
U. of Missouri Press, 1987. First edition, first printing.
Origins, 1989. First printing thus.
New York: Columbia U. Press, 2003. First edition, first printing. Hardcover, in dust jacket.
Bulfinch, 2004. First edition, first printing.
Friedman/Fairfax, 1997. First edition, first printing. Hardcover, in dust jacket.
Rodale, 2011. Later printing.
Chicago, 2004. First edition. Hardcover in dust jacket.
Chronicle Books, 1997. First edition, first printing.
HarperCollins, 1992.
Denver Museum of Natural History, 1994. 4th printing.
Atlantic Monthly Press, 2001. First edition, first printing.
Norton, 2022. First edition, first printing.
Tidewater Publishers, 1944.
Abbeville, 1988. Revised edition.
Houghton Mifflin & Co., 1983. First edition, first printing. Association Copy. Affectionately inscribed by the author on the half-title to Colorado naturalist author, Charles Southwick: "To Chuck / With all best wishes for / your interest and support / of the gorilla research. / Warm regards / Dian Fossey". Signed.....
Metropolitan, 2016. First edition, first printing.
William Morrow, 1997. First edition.
David R. Godine, 1987. First U.S. edition.
Michael Joseph, 1986. First edition, first printing.
Rand McNally, 1966. First edition, first printing.
Simon & Schuster, 2009. First edition, first printing.