000 00353nam a2200145Ia 4500
008 180612s9999||||xx |||||||||||||| ||und||
020 _a81-250-1039-4
041 _aen
082 _a371.102
100 _aKUMAR, Krishna.
245 0 _aWhat is worth teaching?
260 _aNew Delhi.
_bOrient Longman Ltd.
_c1997
300 _aviii, 120p
942 _cPR
999 _c49672
_d49672