United nations water conference : summary and main documents
BISWAS, Asit K
United nations water conference : summary and main documents - Oxford 1978 - 217p - Water development supply and management, v.2 .
WATER -- - CONGRESSES
WATER -- - CONGRESSES
333.91 U-4U
United nations water conference : summary and main documents - Oxford 1978 - 217p - Water development supply and management, v.2 .
WATER -- - CONGRESSES
WATER -- - CONGRESSES
333.91 U-4U