(2004). wastewater recycling manual: For urban areas with case studies. Centre for Science and Environment.
Dyfyniad Arddull ChicagoWastewater Recycling Manual: For Urban Areas with Case Studies. New Delhi: Centre for Science and Environment, 2004.
Dyfyniad MLAWastewater Recycling Manual: For Urban Areas with Case Studies. Centre for Science and Environment, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.