TY - BOOK AU - United Nations. Economic and social commission for asia and the pacific. ED - United Nations. Economic and social commission for asia and the pacific. TI - Proceeding of the working group meeting on environment T2 - "Its, mineral resources development series, 49p." U1 - "X9(HZ):8p1,N8, M2/UN" PY - 1982/// CY - New PB - York United Nations USA KW - Minings ER -