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Notes on a preliminary soil survey of some parts of Kenya Colony
Gracie, David S. - 1929
Persistent link: https://www.econbiz.de/10002477544
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Preliminary observations on some of the soils of Kenya Colony
Gracie, David S.; Burton, G. J. L. - 1929
Persistent link: https://www.econbiz.de/10002477761
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A preliminary survey of some of the soils in Kenya
Gracie, David S. - 1930
Persistent link: https://www.econbiz.de/10002477772
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Soil fertility at the Scott Agricultural Laboratories
Gracie, David S.; Lyne Watt, William - 1929
Persistent link: https://www.econbiz.de/10002477813
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Coffee : principles of pruning and observations on trials
Poer Trench, Arthur D. le - 1927
Persistent link: https://www.econbiz.de/10002650762
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The coffee industry of Kenya Colony
Poer Trench, Arthur D. le - 1925
Persistent link: https://www.econbiz.de/10002650780
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The coffee industry of Kenya Colony
Poer Trench, Arthur D. le - 1926
Persistent link: https://www.econbiz.de/10002650792
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The coffee industry of Kenya Colony
Poer Trench, Arthur D. le - 1928
Persistent link: https://www.econbiz.de/10002650802