000 00315nam a2200133Ia 4500
100 _a??????, ???
020 _a978-81-237-0922-2
250 _a16th ed
942 _cBK
245 _a??? ?????-??? ?????
_b?????? ?? ???????-???? ??
260 _aNational Book Trust, New Delhi
_c2013
082 _a???
300 _a32
999 _c48237
_d48237