Neba (geography, U. of Yaounď I) presents case studies of mountain dwellers and indigenous knowledge of useful plants, cultural survival, and plant-dependent livelihood in tropical mountain areas. From this evidence, he he argues that mountain dwellers have for millennia been at an ecological balance with available plant and animals resources, that is, the rate of exploitation of these resources was in balance with natural regenerative capacity. This, he says should be the basis for new directions in conservation thinking and in managing protected areas. There is no index. Distributed in North America by the African Books Collective. Annotation 2011 Book News, Inc., Portland, OR (booknews.com)