000 00271nam a22001217a 4500
003 OSt
100 _aTyagi, Nita
245 _aSchool Prabandh Aur Swasthya Shiksha
250 _a2nd ed.
260 _aAgra
_bAgarwal Publication
_c2014
300 _a187p.
942 _2ddc
_cBK
999 _c4671
_d4671