00681nam a22002297a 4500003000500000005001700005008004200022010001300064020002300077035002200100037001600122040001500138082001500153100001500168245009800183260004200281270004600323300002500369500001900394650002600413650001200439dpl020180803161210.0180803b        xxu||||| |||| 00| 0 eng d0  aB-130424  c300.00a8187704004  aB-130424,B-130432  bCen Lib/Ret  aDPLbENc0  a574.5bROY  aRoy, Sovan  aEnvironmental science :cby Sovan Roy ba comprehensive treaties on ecology and environment /  bPublishing Syndicate c2003aKolkata   bKolkata a61 Mahatma Gandhi Road e700009  axvi,642p. c22cm(Hb)  aIncludes index  aEnvironmetal science   aEcology