(1971). Environmental control seminar proceedings, Rotterdam, Warsaw, Bucharest, May 25 - June 4, 1971. Bureau of International Commerce.
Chicago Style (17th ed.) CitationEnvironmental Control Seminar Proceedings, Rotterdam, Warsaw, Bucharest, May 25 - June 4, 1971. Washington, DC: Bureau of International Commerce, 1971.
MLA (9th ed.) CitationEnvironmental Control Seminar Proceedings, Rotterdam, Warsaw, Bucharest, May 25 - June 4, 1971. Bureau of International Commerce, 1971.
Warning: These citations may not always be 100% accurate.