00287nam a2200097Ia 4500080001800000100002600018245007000044260004100114300001500155583001900170  a08.11.16 G976  aGunnerson, Charles G.  aAnaerobic digestion : principles and practices for biogas systems  bWorld BankaWashington, D.C.USc1986  axv, 154 p.  c3/7/00kM2LMGR