Books by Frank Knowles
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-20%
The Chemistry of Agricultural Fungicides and Insecticides
J. Elphin, Frank Knowles Watkin
€27.65
€34.56
-20% with code BOOKS
In stock at our supplier
-20%
The Chemistry of Fertilisers and Manure - Including Information on the Chemical Constituents and Types of Fertilisers and Manures
€32.03
€40.04
-20% with code BOOKS
In stock at our supplier