00302nam a2200121Ia 4500008004100000041000700041082001000048100001900058245004300077250000900120260003700129300001400166180612s9999||||xx |||||||||||||| ||und||  aen  a610.7  aVIDYARATAN, Dr 0aViva in Preventive and Social Medicine  a3 rd  aNew Delhibjaypee Brothersc1984  avi, 145 P