Gerhard, Peter, 1920- A guide to the historical geography of New Spain / by Peter Gerhard. - Rev. ed. - Norman : University of Oklahoma Press, c1993. - xi, 484 p. : ill., maps ; 26 cm. - 911/.72 . Includes bibliographical references (p. 409-427) and index. ISBN: 0806125535 (alk. paper) Subjects--Geographic Terms: Mexico--Historical geography.Mexico--History--Spanish colony, 1540-1810. Dewey Class. No.: 911/.72