000 00511nam a2200205 4500
005 20170802124603.0
007 000
008 000
020 _a0749264276
040 _aUOEL
050 _aRA652.2
_b.E5 2000.
245 _aEnvironmental control and public health
_bIntroduction /
250 _aedition 2.3
260 _aWalton;
_bOpen University /
_cc1992.
300 _a66p. :
_bill, ;
440 _aintroduction /
521 _aincludes indexes
650 _aEpidemiology /
_xToxisity
942 _2lcc
_cSBK
999 _c15426
_d15426