Dyfyniad APA
Dharmaratna, D. (2011). Demand, supply and welfare aspects of pipe-borne water in Sri Lanka. Cambridge Scholars Pub..
Dyfyniad Arddull Chicago
Dharmaratna, Dinusha. Demand, Supply and Welfare Aspects of Pipe-borne Water in Sri Lanka. Newcastle upon Tyne: Cambridge Scholars Pub., 2011.
Dyfyniad MLA
Dharmaratna, Dinusha. Demand, Supply and Welfare Aspects of Pipe-borne Water in Sri Lanka. Cambridge Scholars Pub., 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.