Proceedings [of the] seminar-workshop on ..., 24-25 July 1991, Quezon City, Philippines - United Nations Environment Programme; Seminar-Workshop on River Rehabilitation Program for the Manila Bay Region (1991 : Quezon City). (Quezon City EMB, DENR, 1991)
Keywords: Bays -- Philippines -- Manila Metropolitan area; Water -- Pollution; Manila Bay (Philippines) -- Environmental aspects