000 00324nam a2200133Ia 4500
008 180611s9999||||xx |||||||||||||| ||und||
041 _aen
082 _a669
100 _aRanasinghe Banda, J.M
245 4 _aThe Degree of Bachelor of Science
260 _aSri Lanka
_bOpen University
_c1992
300 _a55p.
942 _cLL
999 _c17511
_d17511