665.776 NIJ 52235 52236 52237 52238 52239 55154
Nijaguna, B. T. Biogas technology / by B. T. Nijaguna. - na. - New Delhi : New Age, c2002 xii, 287p. :ill. 81-224-1380-3 Rs.250.00 * Bioreactors Civil Ethanol Methanation
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