TY - BOOK ED - Unesco TI - Perceptions and analyses of worls problems: major programme I : reflections on world problems and future-oriented studies : synoptic report, 1984-1985 AV - HN 28 P47.1986 U1 - 361.1 19 PY - 1986/// CY - ParĂ­s PB - United Nations Educational, Scientific and Cultural Organization KW - Problemas sociales KW - Sistemas sociales N1 - BibliografĂ­a: p. 109-124 ER -