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Ptit︠s︡y i vreditelʹi lesa
Aleksandr Nikolaevich Formozov
其他書名
Znachenie ptit︠s︡ v regulirovanii chislennosti vrednykh nasekomykh lesa i lesnykh posadok
出版Izd-vo Moskovskogo Obshchestvo Ispytateleĭ Prirody, 1950
URLhttp://books.google.com.hk/books?id=hYA_AAAAYAAJ&hl=&source=gbs_api