000 00318nam a2200109Ia 4500
008 220516s1986 xx 000 0 und d
041 _aeng
082 _a665.776 CHA/ADV
100 _aChawla , O P
_9833464
245 _aAdvances in biogas technologies
260 _aNew Delhi
_bPublications and information division
_c1986
999 _c582236
_d582236