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Environmental control seminar proceedings, Rotterdam, Warsaw, Bucharest, May 25-June 4, 1971.

APA Citation

United States. Bureau of International Commerce. (1971). Environmental control seminar proceedings, Rotterdam, Warsaw, Bucharest, May 25-June 4, 1971. Washington: Bureau of International Commerce; for sale by the Supt. of Docs., U.S. Govt. Print. Off..

MLA Citation

United States. Bureau of International Commerce. Environmental Control Seminar Proceedings, Rotterdam, Warsaw, Bucharest, May 25-June 4, 1971. Washington: Bureau of International Commerce; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1971.

Warning: These citations may not always be complete (especially for serials).