00470nam a22001097a 4500020000900000082001300009100001500022245004600037260004600083300003500129650019600164  a(hb)  a613bTHE  aHobson, W.  aThe theory and practice of public health   aNew York bOXFORD UNIVERSITY PRESS c1979  axiii, 785 p.b: ill.c; 28 cm.  aPublic healthvHealth management and planning vCommunity development and housing vAir pollution and health vEpidemiology and control of water vVenereal diseases and treponematoses vIIMC