000 00299nam a2200121Ia 4500
008 220201s1978 xx 000 0 eng d
082 _a510
_bPRA
100 _aI.B. Prasad
245 0 _aTextbook of practical mathematics
260 _aDelhi
_bKhanna publication
_c1978
300 _a820
942 _2ddc
999 _c21672
_d21672