00494nam a2200169Ia 4500008004100000020001800041082001700059100001600076245007800092250000800170260003600178300001700214650003400231650002100265650001800286700002000304170628s9999    xx            000 0 und d  a9788123920320  a362.12 bLAL  aLal, Sunder  aTextbook of community medicine: Preventive and social medicineh(English)  a3rd  c2011aNew DelhibCBS Publishers  axv,760p.bHB  aCommunity and Family medicine  aCommunity health  aPublic health  dAdarsh & Pankaj