RT Book T1 Water pollution as a world problem: the legal, scientific and political aspects; report of a conference held at the University College of Wales, Aberystwyth, 11/12 July 1970; published for the Davies Memorial Institute of International Studies LA English PP London PB Europa Publ. YR 1971 UL https://krimdok.uni-tuebingen.de/Record/1072726645 K1 Konferenzschrift K1 Wasserverschmutzung