APA (7th ed.) Citation

(1971). Environmental control seminar proceedings, Rotterdam, Warsaw, Bucharest, May 25 - June 4, 1971. Bureau of International Commerce.

Chicago Style (17th ed.) Citation

Environmental Control Seminar Proceedings, Rotterdam, Warsaw, Bucharest, May 25 - June 4, 1971. Washington, DC: Bureau of International Commerce, 1971.

MLA (9th ed.) Citation

Environmental 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.