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- catalog contributor b9045120.
- catalog created "1971.".
- catalog date "1971".
- catalog date "1971.".
- catalog dateCopyrighted "1971.".
- catalog description "Includes bibliographical references.".
- catalog extent "viii, 297 p.".
- catalog issued "1971".
- catalog issued "1971.".
- catalog language "eng".
- catalog publisher "Washington, Bureau of International Commerce; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,".
- catalog subject "614.7".
- catalog subject "Air Pollution Congresses.".
- catalog subject "Environmental engineering Congresses.".
- catalog subject "TD172.5 .E56".
- catalog subject "Water Pollution Congresses.".
- catalog title "Environmental control seminar proceedings, Rotterdam, Warsaw, Bucharest, May 25-June 4, 1971.".
- catalog type "text".