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State of the world 1985 : a Worldwatch Institute report on progress toward a sustainable society project director, Lester R. Brown ; project assistant, Edward Wolf ; editor, Linda Starke ; senior researchers, Lester R. Brown ... [et al.] - New York Norton c1984 - xvii, 301 s ill.

ISBN: 0393019306 (ib.) 0393302180 (h.) 9780393019308 (ib.) 9780393302189 (h.)