Spencer, A.M. (1971). Late Pre-Cambrian Glaciation in Scotland. No.6 Memoirs of the GSL
Spencer, A.M. (1971). Late Pre-Cambrian Glaciation in Scotland. No.6 Memoirs of the Geological Society of London. 100pp. + 8 b/w photo plates + 3 fold-out b/w plates. PB A4 format. Fold-out plates as follows:pl.9 Geological Map of the Port Askrigg area, Islay, c1:15,400 56 x 22cm, pl.10 Stratigraphical Sections of the Port Askrigg Tillite, 84 x 52, pl11 Geological Map and horizontal section chart of the Garvellachs, c1:5700, 56 x 117cm. Owner signature of cover, otherwise clean, unmarked and in very good condition.