Wade, Nicholas. Before the dawn : recovering the lost history of our ancestors / Nicholas Wade. - 1st ed. - New York : Penguin Press, 2006. - 312 p. : ill., maps ; 25 cm. Includes bibliographical references (p. [281]-296) and index. ISBN: 9780715636589 (pbk.) LCCN: 2005055293 Subjects--Topical Terms: Human evolution.Social evolution. Dewey Class. No.: 599.938 / WAD