Ecologic-socioeconomic system analysis and simulation : a guide for application of system analysis to the conservation, utilization and development of Tropical and Subtropical land resources in China : compiled from the Proceedings of the China Resources Conservation, Utilization and Development Seminar, CRCUDS, ... Guangzhou, China, February-March 1986
E. F. Bruenig, ... [et al.]
Bok Engelsk 1986