000 00277nam a22001337a 4500
003 OSt
100 _aRao, B.sridhar
245 _aEssentials of epidemiology
250 _a2 nd
260 _aDelhi
_bAITBS
_c2013
300 _a219 p.:
901 _a1639Nursing
942 _2ddc
_cBK
999 _c32703
_d32703