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Cyril G Hopkins
Cyril G Hopkins is the author of "The Farm That Won't Wear Out", "Soil Fertility Laboratory Manual (Classic Reprint)", "The Story of the Soil; from the Basis of Absolute Science and Real Life" and "Soil Bacteria and Phosphates (Classic Reprint)".
Books by Cyril G Hopkins
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Soil Fertility La...
Hopkins, Cyril G.
Hardback:
$25.59
The Story of the ...
Hopkins, Cyril G.
Paperback:
$21.99
For Better Crops
Hopkins, Cyril G.
Paperback:
$21.75
The Story of the ...
Hopkins, Cyril G.
Paperback:
$19.99