London, Institute of Geological Sciences, 1975 in-4, 112 pp., planches hors-texte, carte dans le texte, broché, sous chemise cartonnée contenant une pochette de 9 grandes cartes dépliantes
London, Natural Environment Research Council - Institute of Geologial Sciences - Oversea Memoir No 1, 1975. 1 volume in-4, soft illustrated covers, 111 pp., illustrated with 18 figures (mostly maps), in the original portfolio case with 9 large geological folding maps to illustrate the topic, a very good copy, with a former owner stamp.