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1Texto bibliotecaFAO IT
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2Texto bibliotecaFAO IT
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3Texto bibliotecaFAO IT
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4Texto bibliotecaFAO IT
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5Texto bibliotecaFAO IT
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6by Gordon, A.L., American Geographical Society, New York, N.Y. eng, Goldberg, R.D., Hunkins, K.
Published 1970Texto bibliotecaFAO IT -
7by Balech, E., American Geographical Society, New York, N.Y. eng, El-Saved, S.Z., Hasle, G., Neushul, M., Zaneveld, J.S.
Published 1968Texto bibliotecaFAO IT -
8by Brown, S.G., American Geographical Society, New York, N.Y. eng, Brownell, R.L. Jr., Erickson, A.W., Hofman, R.J., Llano, G.A.
Published 1974Texto bibliotecaFAO IT