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Proceedings of the Unesco symposium: Geo-ecology of the mountainous regions of the tropical Americas ( 1-3 ao–t 1966 : México, D.F) (Nombre de reunión)

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Preferred form: Proceedings of the Unesco symposium: Geo-ecology of the mountainous regions of the tropical Americas ( 1-3 ao–t 1966 : México, D.F)

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Work cat.: (OSt)47170: Proceedings of the Unesco symposium: Geo-ecology of the mountainous regions of the tropical Americas ( 1-3 ao–t 1966 : México, D.F), Geo-ecología de las regiones montañosas de las Américas tropicales, 1968