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The state of transboundary air pollution 1992 update : report prepared within the framework of the convention on long-range transboundary air pollution. - - New York : United Nations, 1993. - iv, 48 p. : graphs. - - (Air pollution studies ; 9). .

ISBN: 9211165741 (pbk.)

Subjects--Topical Terms:
Air pollution.

LC Class. No.: TD883.1 / E36 1993