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Preliminary survey of conservation possibilities in El Salvador
Bourne, W. Clinton (contributor) - 1946
Persistent link: https://www.econbiz.de/10003659084
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Development of geological resources in El Salvador
Tromp, Solco Walle - 1954
Persistent link: https://www.econbiz.de/10000322791
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Misión de las Naciones unidas en El Salvador: desarrollo de los recursos geológicos de El Salvador
Tromp, S. W. - In: Revista de economía 10 (1958) 33/36, pp. 233-348
Persistent link: https://www.econbiz.de/10002925651
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Ueber Marschbildung an der Westküste des Herzogthums Schleswig und die Mittel zur Beförderung derselben
Reventlow, Arthur von - 1863
Persistent link: https://www.econbiz.de/10000589509
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Report on the soil survey project of British Guiana
1965
Persistent link: https://www.econbiz.de/10000322466
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Soils : their physics and chemistry
Puri, A. N. - 1949
Persistent link: https://www.econbiz.de/10000544073
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The physical aspects of soil management
Pillsbury, Arthur F. - 1959
Persistent link: https://www.econbiz.de/10003651134
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Agriculture in Iraq during the 3rd century, A. H.
Sāmarrāie, Ḥusām Qawām El- - 1972
Persistent link: https://www.econbiz.de/10002116553
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Land evolution and land use planning in Tabora region
Mitchell, A. J. B. (contributor) - 1984
Persistent link: https://www.econbiz.de/10008735836