• 23 Books

• 14 Effect of human beings on
• 4 Human ecology
• 3 Effect of environment on
• 3 Human beings
• 3 Social aspects
• 2 Climatic changes
• 2 Ecology
• 2 Gorgias, of Leontini
• 2 History
• 2 Ontology
• 2 Philosophy
• 1 Authorship
• 1 Biblical teaching
• 1 Christianity
• 1 Creation
• 1 Criticism, Textual
• 1 Cultural pluralism
• 1 Economic aspects
• 1 Environmental aspects
• 1 Environmental ethics
• 1 Environmental protection
• 1 Exhibitions
• 1 Fragments
• 1 Historical geography

• 2 Gorgias, of Leontini
• 2 Jaquenod de Zsögön, Silvia
• 1 Alcoriza Vento, Javier
• 1 Ariza, Sergio
• 1 Associació Filosofía de la Terra i de les Cultures
• 1 Barrera Lobatón, Susana
• 1 Benedict XVI, Pope, 1927-2022
• 1 Brailovsky, Antonio Elio
• 1 Bredlow, Luis Andrés
• 1 Canadell, Àngels
• 1 Carson, Rachel, 1907-1964
• 1 Chicagui L., Julio Ernesto (Chicagui Larrotta)
• 1 Corniero, María
• 1 Cunill, Pedro
• 1 Diamond, Jared M.
• 1 Emerson, Ralph Waldo, 1803-1882
• 1 Francis, Pope, 1936-
• 1 Gasda, Élio Estanislau, 1967-
• 1 Gibert, Alex
• 1 Herrera Lima, Susana
• 1 Jones, Lucy (Journalist)
• 1 Lastra, Antonio
• 1 López Sastre, Gerardo
• 1 López Varela, Araceli

• 23 Spanish
• 2 Greek, Ancient (to 1453)
• 1 Catalan

• 2 Latin America
• 1 Earth (Planet)

• 1 Congresses
• 1 Early works to 1800
• 1 Fiction
• 1 Juvenile literature
• 1 Science fiction
• 1 Sources
• 1 Translations into Spanish

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