Catálogos de Bibliotecas 166

HUMAN ECOLOGY ECOLOG�IA HUMANA 33 EFFECT OF HUMAN BEINGS ON 24 NATURE 24 HISTORY 23 SOCIAL ASPECTS 22 PHILOSOPHY 20 ENVIRONMENTAL POLICY 14 ECOLOGY 13 ECOLOGÍA HUMANA 13 ENVIRONMENTAL PROTECTION 13 CLIMATIC CHANGES 11 ECOLOGÍA HUMANA 11 SUSTAINABLE DEVELOPMENT 10 ENVIRONMENTAL ASPECTS 9 ENVIRONMENTAL CONDITIONS 9 HUMAN GEOGRAPHY 9 ENVIRONMENTAL SCIENCES 7 MEDIO AMBIENTE 7 NATURALEZA 7 ECOLOG�IA 6 ENVIRONMENTAL DEGRADATION 6 ENVIRONMENTAL ETHICS 6 FILOSOFÍA 6 PHILOSOPHY OF NATURE 6 RELIGIOUS ASPECTS 6 SOCIAL ECOLOGY 6 ASPECTOS AMBIENTALES 5 ASPECTOS SOCIALES 5 ECOLOGIA HUMANA 5