00511nam a2200205 4500 20170802124603.0 000 000 0749264276 UOEL RA652.2 .E5 2000. Environmental control and public health Introduction / edition 2.3 Walton; Open University / c1992. 66p. : ill, ; introduction / includes indexes Epidemiology / Toxisity lcc SBK 15426 15426 0 0 lcc 0 0 UOE UOE GEN 2017-08-02 0 RA652.2 .E5 2000. 20038318 2026-04-27 11:55:45 20038318 2017-08-02 SBK 0 0 lcc 0 0 UOE UOE GEN 2017-08-02 0 RA652.2 .E5 2000. 20038327 2026-04-27 11:55:45 20038327 2017-08-02 SBK