Hall, Robert Anderson External history of the Romance languages [by] Robert A. Hall, Jr. - New York American Elsevier Pub. Co. [1974] - xiii, 344 p. 24 cm. - His Comparative Romance grammar, [1] Foundations of linguistics series . Bibliography: p. 249-329. ISBN: 0444001360 LCCN: 73006088 /MN/r76 Subjects--Topical Terms: Romance languages--Grammar, Comparative. LC Class. No.: PC61 / .H3 Dewey Class. No.: 440