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Vertisols in the Collection of the ISM and some Suggestions on Classification. Presented to Fifth International Soil Classification Workshop, Khartoum, Sudan, (69 pages). [Monograph]
Baren, H. van \ Sombroek, W.G. \ Kaplan, A. \ 1982
classification systems - soil classification
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Caracterizacion de un Vertisol de la Unidad "La Carolina" I. Propiedades Fiscas. (Thesis) [Monograph]
Kaplan, A. \ León, J.P. de \ 1981
South America - Uruguay
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Vertisols in the Collection of the International Soil Museum and Some Suggestions on Classification. Presented by W.G. Sombroek at the Fifth International Soil Classification Workshop, Khartoum, Sudan November 1982. [Monograph]
Baren, H. van \ Sombroek, W.G. \ Kaplan, A. \ 1982
soil classification - World
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Carte General de Suelos del Uruguay. [General Soil Map of Uruguay] [Map]
Duran, A. \ Kaplan, A. \ 1967
soil - South America - Uruguay
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