000 00324nam a2200121Ia 4500
008 210804s9999 xx 000 0 und d
082 _a711.1
_bSRI
110 _aSri Lanka
245 0 _aEnvironmental protection and management
260 _aColombo
_bSri Lanka Foundation Institute
_c1978
300 _a56 p.
942 _cPRGD
999 _c158918
_d158917