00450aam a2200145 450000500170000000800410001702000180005808200150007610000170009124500920010826000260020030000160022665000250024265000370026720250521095932.0140223b2013 xxu||||| |||| 00| 0 eng d a9788179934951 a634.92 GUP aGupta, H. S. aEnsuring sustainability in forestry : certification of forests / by H. S. Gupta...et.al aNew DelhibTERIc2013 axx, : 264p. aSustainable forestry aForests and forestry - Standards