Ratna, V. (1996). Urban water crisis: Rational for pricing. Rawat.
Dyfyniad Arddull ChicagoRatna, V. Urban Water Crisis: Rational for Pricing. Jaipur: Rawat, 1996.
Dyfyniad MLARatna, V. Urban Water Crisis: Rational for Pricing. Rawat, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.