000 00257nam a2200097Ia 4500
008 230915s9999 xx 000 0 und d
050 _aLB 2126 .A75 1976
100 _aARIYADASA, K. D.
245 0 _aIn-service training of teachers in Sri Lanka
942 _cBK
999 _c169308
_d169308