00502nam a2200133Ia 4500008004100000040001700041082002500058110009600083245004400179260003500223300001400258440004800272650004800320190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta333.7938bU58U  aUnited Nations. Economic and Social Commission for Asia and the Pacific (Bangkok, Thailand) 0aUpdated guidebook on biogas development  aNew YorkbUnited Nationsc1984  axi, 178p.  aEnergy resources development series; no. 27  aEnergy development; Biogas; Biomasas energy