Dolgarrog: Description of 1: 25 000 Sheet SH 76: Description of 1:25000 Sheet SH 76 (Classical Areas of British Geology Guides)

by: British Geological Survey · M.F. Howells Paperback details (UK). ISBN: 978-0-11-884133-7 ISBN-10: 0-11-884133-5 British Geological Survey · 1981