DiSilvestro, Roger L. The African elephant : twilight in Eden / Roger L. DiSilvestro ; Christopher N. Palmer, executive editor ; Page Chichester, photographer. - New York : Wiley, c1991. - xvii, 206 p. : ill. (some col.) ; 32 cm. "A National Audubon Society book." ISBN: 047153207X : $34.95 Subjects--Topical Terms: African elephant.Wildlife conservation. LC Class. No.: QL737.P98 / D57 1991 Dewey Class. No.: 333.95/9