Dolder, Willi. Endangered animals : species facing extinction, and the threats to their habitats / Willi Dolder, Ursula Dolder-Pippke. - Bath, UK ; New York : Parragon, 2009. - 256 p. : col. ill., maps ; 32 cm. Includes bibliographic references (p. 246) and index. ISBN: 1407556975 9781407556970 LCCN: 2012358249 Subjects--Topical Terms: Endangered species.