Keeping Track of Our Changing Environment : From Rio to Rio+20 (1992-2012)
UNEP Division of Early Warning and Assessment
2011.
Grado en Educación Social-
recurso_electronico
Rebiun09476262
https://catalogo.rebiun.org/rebiun/record/Rebiun09476262
cr
131216s2011 sp b spa d
UM0621931
UM
Keeping Track of Our Changing Environment
: From Rio to Rio+20 (1992-2012)
UNEP Division of Early Warning and Assessment.
Nairobi
UNEP Division of Early Warning and Assessment
2011.
Nairobi
Nairobi
UNEP Division of Early Warning and Assessment
Educación y desarrollo sostenible.
Grado en Educación Social-
Recursos en Internet