00505nam a2200145Ia 450000500170000008000180001710000250003524500670006026000280012730000100015552001480016558300170031394200120033099900170034220260716043505.0  a16.01.01 G173  aGallopín, Gilberto  aSystems approach to sustainability and sustainable development  bECLACaSantiagoCLc2003  a42 p.  aExamines the concepts of sustainability and sustainable development from a systems perspective, seeking to abstract their fundamental elements.  c6/5/03kJOYD  cMmG173  c48335d48335