Elwell, H and Stocking, Michael (1982) Developing a simple yet practical method of soil-loss estimation. Tropical Agriculture, 59 (1). pp. 43-48.
Thobum, John (1982) Tin:agreement or cartel? Resources Policy, 8 (3). pp. 230-232. ISSN 0301-4207
Thoburn, John (1982) Tin. In: Transnational Corporations and Primary Commodity Exports from Asia and the Pacific. United Nations Economic and Social Commission for Asia and the Pacific, pp. 201-235.