@book{4299,
	author = {Montalbo, Andrew T. and Chongrak Polprasert, and Government of France, },
	title = {Ammonia-nitrogen removal in water hyacinth-gravel system},
	publisher = {Asian Institute of Technology,},
	year = {1989},
	series = {Thesis ;},
	address = {Bangkok :},
	note = {A thesis submitted in partial fulfillment of the requirement  for the degree of Master of Engineering, School of Environment, Resources and Development},
	url = {http://203.159.5.9/ait-thesis/detail.php?q=B18015}
}