Natural resources in tropical countries / Ooi, Jin-Bee. Commonwealth Geographical Bureau. Natural resources Natural resources 333 PUB 1993 A016 Or. Papers presented at a workshop of the Commonwealth Geographical Bureau held in the Centre for Development Studies, University College of Swansea, Apr. 7-14, 1981. Singapore : Published by Singapore University Press with a grant from the Commonwealth Foundation and the United Nations University, c1983. c1983. Text xxi, 549 p. :