00413cam a22001457a 4500003000400000005001700004008004000021082001800061100001600079245007400095260002000169300000900189650003000198650003900228OSt20210803113926.0180718b1986   xxu||||| |||| 00| 0 eng d  aY26x5441 V519  aVeena, D.R.  aBio-gas technology: a study of community bio-gas plantcby D.R. Veena  aNew Delhic1986  a94p.  aBio-gas - India - Gujarat  aEnergy resources - India - Gujarat