000 00297nam a2200121Ia 4500
100 _aSathianathan,M A.
942 _cBK
654 _a
245 _aBio-gas achievements and challenges
260 _aNew Delhi
_bSagar Printers and Publishers
_c1975
082 _a665.7
300 _c28.5cm
_axxvi,192
999 _c360694
_d360694
041 _aeng