000 00489cam a22001457a 4500
008 180718b1965 xxu||||| |||| 00| 0 eng d
082 _aO32 G589
100 _aGonzalez, C.L.
245 _aMass campaigns and general health services
_cby C.L. Gonzalez
260 _aGeneva
_bWorld Health Organization
_c1965
300 _a87p
650 _aPreventive health services.
650 _aCommunicable diseases --Developing countries --Prevention
650 _aPublic health --Developing countries
999 _c413227
_d413227