000 00468 a2200169 4500
020 _a8186623825
082 _a363.728
_bNAT
090 _c19523
_d29937
100 _aNational institute of industrial research board
245 _aHand book on biogas and its applications
260 _aDelhi
_bNational Institute of Industrial Research
300 _axiii,454p.
_c22cm
650 _aWASTES
650 _aENVIRONMENTAL PROBLEMS
650 _aSANITATION
942 _cL
999 _c47253
_d47253