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- 87403546 contributor B5550592.
- 87403546 contributor B5550593.
- 87403546 created "[1982]".
- 87403546 date "1982".
- 87403546 date "[1982]".
- 87403546 dateCopyrighted "[1982]".
- 87403546 description "Includes bibliographies.".
- 87403546 extent "464 p. :".
- 87403546 issued "1982".
- 87403546 issued "[1982]".
- 87403546 language "spa".
- 87403546 publisher "[Mexico City, Mexico] : Unesco : CREA,".
- 87403546 subject "305.2/35 19".
- 87403546 subject "Adolescent psychology Congresses.".
- 87403546 subject "HQ793 .S447 1981".
- 87403546 subject "Youth Congresses.".
- 87403546 subject "Youth Political activity Congresses.".
- 87403546 subject "Youth Social conditions Congresses.".
- 87403546 title "Memoria del Seminario Internacional de Investigación sobre Problemas de la Juventud : Ciudad de México, agosto de 1981.".
- 87403546 type "text".