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

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

Bibliographic Details
Format: Book
Language:English
Published: Washington, DC Bureau of International Commerce 1971.
Subjects:
Environmental engineering > Congresses.
Water > Pollution > Congresses.
Air > Pollution > Congresses.