000 00407nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
084 _a641 C1
100 _a"Clerk, Dumcan W"
245 0 _aPreventive and Community Medicine
250 _a\\198102ENGGPSX
260 _aLittle Brown
260 _b1981
260 _cBoston
300 _a794p
500 _aincludes index and biblioraphy
942 _cBK
999 _c50293
_d50293