@book{33599,
	author = {Chong, Liew Ee and Prida Wibulswas,  and Shell International Petroleum Company, },
	title = {Economics of biogas digesters for pig farms in Thailand},
	publisher = {Asian Institute of Technology,},
	year = {1986},
	series = {Research studies project report ;},
	address = {Bangkok :},
	note = {A research study (6 credits) summitted in partial fulfilment  of the requirements for the Degree of Master of Engineering., School of Environment, Resources and Development},
	url = {http://203.159.5.9/ait-thesis/detail.php?q=B19481}
}