Catálogos de Bibliotecas 117

ECOLOGY 49 HUMAN ECOLOGY 39 ENVIRONMENTAL POLICY 17 ECOLOGÍA HUMANA 8 ENVIRONMENTAL ASPECTS 8 ENVIRONMENTAL PROTECTION 8 PHILOSOPHY 8 TRADITIONAL ECOLOGICAL KNOWLEDGE 8 CONOCIMIENTO ECOLÓGICO TRADICIONAL 7 ECOLOGÍA 7 EFFECT OF HUMAN BEINGS ON 7 ENVIRONMENTAL SCIENCES 7 ENVIRONMENTALISM 7 LAW AND LEGISLATION 7 NATURE 7 ECOLOGÍA HUMANA 6 HISTORY 6 SOCIAL ECOLOGY 6 POLLUTION 5 ASPECTOS AMBIENTALES 4 BIODIVERSITY CONSERVATION 4 CLIMATIC CHANGES 4 CONSERVACIÓN DE LA BIODIVERSIDAD 4 CONSERVATION OF NATURAL RESOURCES 4 ECONOMIC ASPECTS 4 INTELLECTUAL PROPERTY 4 LEGISLACIÓN 4 POLITICAL ASPECTS 4 POLÍTICA AMBIENTAL 4 SOCIAL ASPECTS 4