00480nam 2227539 450000100060000000300230000600500090002900800410003808200110007907200260009002000180011610000150013426000180014925000060016724500470017365000260022065000220024665000200026827539StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a610.28 aEpidemiological triad a81-8061-070-5 aBK MAHAJAN bJAYPEE c2005 a3 atextbook of preventive and social medicine aEpidemiological triad ahealth statistics asocial medicine