@book{44449,
	author = {Chongrak Polprasert and Thailand.},
	title = {Final report on upgrading and management of sludge treatment facility at North Bangkok Water Treatment Plant /},
	publisher = {Asian Institute of Technology,},
	year = {1990},
	series = {Research report ;},
	address = {Bangkok :},
	note = {At head of title: Metropolitan Waterworks Authority of Thailand}
}