El pensamiento ecologista
By: Ricardo A. Navarro, Gabriel Pons, German E. Amaya.
Contributors: Pons, Gabriel.; Amaya, German E.
Publisher: Centro Salvadoreño de Tecnología Apropiada
Published: 1990
Place of publication: [San Salvador?
Language: spa
Number of pages: 551
Subjects: Environmental policy -- El Salvador.; El Salvador -- Environmental conditions.