000 00439nam a2200169Ia 4500
003 NIELib
008 220420s9999||||xx |||||||||||||| ||und||
020 _a955-552-081-X
082 _a570
_bKOT
100 _aKothalawala, Athar B.
_916471
242 _aparisara widyawa
245 _aපරිසර විද්‍යාව
260 _bLake House,
_c1984.
_aColombo:
300 _a218p.;
_c24cm
650 _aBiology
942 _2ddc
_cLM
999 _c55213
_d55213