Disgrifiad
Disgrifiad Corfforoll: | xxi, 874 p. : col. maps ; 25 cm. Available also online via the Internet. |
Llyfryddiaeth: | Includes bibliographical references (p. 831-833) and indexes. |
ISBN: | 0195046455 (acid-free paper) : |
Additional Physical Form available Note: | Available also online via the Internet. |