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5Texto bibliotecaFAO IT
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6Texto bibliotecaFAO IT
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7Texto bibliotecaFAO IT
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8by 184283 FAO, Rome (Italy). Depto. de Montes spa, Hopf, J. 186971, 187323 PNUD, San Salvador (El Salvador) spa
Published 1983Texto bibliotecaFAO IT -
9by Hopf, J., European Forestry Commission. Working Party on the Management of Mountain Watersheds eng 23 Sep - 4 Oct 1986 Sess. 15 Innsbruck (Austria)
Published 1986Texto bibliotecaFAO IT