000 00273nam a2200121Ia 4500
100 _aBorah, Swapna (ed)
020 _a81-85061-54-8
942 _cBK
245 _aDistance Education
260 _aAmar prakashan, New Delhi
_c1987
082 _a374.4 Bor
300 _aviii,306
999 _c59466
_d59466