TY - BOOK AU - Bandaranayake, G.M. TI - Water resources study: theory practice and application SN - 9789552096914 U1 - 627.1 PY - 2007/// CY - Colombo PB - Godage International KW - Water KW - Water resources KW - Inland waterways KW - Ancient irrigation KW - Water controlling system KW - Ground water KW - River ER -