Derr, Mark. A dog's history of America : how our best friend explored, conquered, and settled a continent / Mark Derr. - 1st ed. - New York : North Point Press, 2004. - xvi, 380 p. : ill. ; 24 cm. Includes bibliographical references (p. [351]-[366]) and index. ISBN: 0865476314 (alk. paper) LCCN: 2003071069 Subjects--Topical Terms: Dogs--History.--America LC Class. No.: SF422.6.A3 / D47 2004 Dewey Class. No.: 636.7/00973