Walker, John Frederick. Ivory's ghosts : the white gold of history and the fate of elephants / John Frederick Walker. - 1st ed. - New York : Atlantic Monthly Press, c2009. - 312 p., [16] p. of plates : ill., map ; 24 cm. ISBN: 0871139952 9780871139955 LCCN: 2009284054 LC Class. No.: QL737.P98 / W36 2009 Dewey Class. No.: 599.67/4