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Vertebrate cadastre of the Oryol region. Volume I. Lamprey, fish, amphibians, reptiles, mammals / Department for the protection and use of wildlife, aquatic biological resources and environmental safety of the Orel region (Oreloblakokontrol); Auto-reg. N.V. Vyshegorodsky, A.A. Arabadzhi. - Eagle, 2010. -
605: The Natural Environment of Russia Letter from the head of the department Ivanov N.F. from 07.17.17 № UE-1816.
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Source of the electronic copy: Department for Environmental Safety and Nature Management of the Orel Region |
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