J. H. Gilbert grāmatas

Results Of Experiments At Rothamsted: On The Growth Of Barley, For More Than Thirty Years In Succession On The Same Land (1887)

J. H. Gilbert

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Results Of Experiments At Rothamsted: On The Growth Of Barley, For More Than Thirty Years In Succession On The Same Land (1887)

J. H. Gilbert

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History, and Present Position, of the Rothamsted Investigations

J. H. Gilbert

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