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Ermolov, A.S.
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Report of the Experimental Field in the estate of Bolshaya Aleshnya, Ryazan Province, Ryazhsky District ... - Petrograd: Ryazhsk. County. zemstvo. -
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Source of the electronic copy: PB |
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3: ... for 1913 and 1914 years. - A type. I. Flejtmana, 1914. -110 with. : table .. -
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Source of the electronic copy: PB |
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En
Ru