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1Published 1981### CRL customization ### ?> ### Add publisher and desc details ### ?>Leningrad : Nauka, Leningradskoe otd-nie, 1981.216 p. : ill., charts, maps.“...Joint US-USSR Committee on Cooperation in the Field of Environmental Protection...”
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2Published 1979### CRL customization ### ?> ### Add publisher and desc details ### ?>Leningrad : "Nauka," Leningradskoe otd-nie, 1979.351 p. : ill. ; 23 cm.“...Joint US-USSR Committee on Cooperation in the Field of Environmental Protection...”