(1971). WATER SUPPLY ENGINEERING. ASIA PUBLISHING HOUSE.
Dyfyniad Arddull ChicagoWATER SUPPLY ENGINEERING. BOMBAY: ASIA PUBLISHING HOUSE, 1971.
Dyfyniad MLAWATER SUPPLY ENGINEERING. ASIA PUBLISHING HOUSE, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.