Litherland, M. and Annels, RN. et al. (1986). The Geology and Mineral Resources of the Bolivian Precambrian Sheild. Overseas Memoir 9. London: HMSO for British Geological Survey. 1^st edition. 154pp + folding map in pocket. Hard back A4 format with brown cloth-covered boards with white lettering to spine and location map on cover. Bumped corners but little wear, binding sound. Text clean and unmarked. In very good condition. Folded colour printed map in pocket, ‘Mapa Geologico del Area del Proyecto Precambrico (1976-83)’, 1:1,000,000 scale 106 x 74cm folding to 26.7 x 18.5cm, bilingual Spanish/ English. In very good condition.