Tohutoro APA (7th ed.)
Ognev, S. I. Mammals of the U.S.S.R. and adjacent countries.
Tohutoru Kātū Chicago (17th ed.)
Ognev, Sergej Ivanovič. Mammals of the U.S.S.R. and Adjacent Countries.
Tohutoro MLA (9th ed.)
Ognev, Sergej Ivanovič. Mammals of the U.S.S.R. and Adjacent Countries.
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