00710nam0 2200241 450 00001662020080929084230.0003089065920080929d1971----km-y0itay50------baengUSy-------001yyEnvironmental economicsThomas D. Crocker, A. J. Rogers 3.Hinsdale (Ill.)Dryden Press1971VII, 150 p.23 cm301.31097319Crocker,Thomas D.15848Rogers,Augustus James571041ITUNIPARTHENOPE20080929RICAUNIMARC000016620936/24763NAVA2Environmental economics1201901UNIPARTHENOPE