Conference on water pollution problems in Europe, held in Geneva 22 February to 03 March 1961
Conference on water pollution problems in Europe, held in Geneva 22 February to 03 March 1961
/ United Nations, Geneva 1961
- Geneva: United Nations, 1961
- 468p.
Science
Water pollution
628.19(082.2)(4) / K1.2
Science
Water pollution
628.19(082.2)(4) / K1.2