01129nam a2200289Ia 4500 141389 141389 184789 BIBL 20170222050052.0 940903s1975 mx 00100 spa d 72011726 PR-PUCPR spa BUCG GF8 301.31 301.31 W628 Quién defiende la tierra? Barbara Ward [y otros]; compilación de Maurice Strong; traducción de Juan José Utrilla. México Fondo de Cultura Económica c1975. 156 p. Translation of : Who speaks for earth. Human ecology Addresses, essays, lectures. Local 113116 Pollution Addresses, essays, lectures. Local 152331 Population Addresses, essays, lectures. Local 152616 Ward, Barbara 1914- 187164 Strong, Maurice F. 1929-. 175149 6 301.31 W628 0 0 lc 0 GF_8_000000000000000__W4918_1975 0 mbl 125872 12 12 20 2016-05-27 F.C.E. 3.20 272764 0 GF 8 .W4918 1975 50000001864759 2016-05-27 00:00:00 r:184789 z:NCC:D 6