@book{11960,
	author = {Ackermann, Norbert L. and Bicol River Basin Council, },
	title = {Bicol River Basin flood control investigation /},
	publisher = {Asian Institute of Technology,},
	year = {1975},
	series = {Research report ;},
	address = {Bangkok :},
	note = {In cooperation with Bicol River Basin Council},
	url = {http://203.159.5.9/ait-thesis/detail.php?q=B23983}
}