00485cam a22001697a 4500 356161 356161 OSt 20210803113926.0 180718b1986 xxu||||| |||| 00| 0 eng d Y26x5441 V519 Veena, D.R. 26253 Bio-gas technology: a study of community bio-gas plant by D.R. Veena New Delhi 1986 94p. Bio-gas - India - Gujarat 26254 Energy resources - India - Gujarat 26255 ddc 0 0 0 Y_26X5441_V519 0 IIPA IIPA 1994-01-03 Y26x5441 V519 61702 2018-07-21 2018-07-21 BK 0 0 ddc 0 TNC_Y26X5441_V519 0 IIPA IIPA 2021-07-06 TNC Y26x5441 V519 GR23551 2021-07-06 2021-07-06 GR