00432nam a2200157   450000500170000000800040001702000150002104000090003605000160004510000200006124500420008126000330012330000230015652100500017965000450022920230208142437.0000  a0333541340  aUOEL  aRA601b.J6   aJohns, Nicholas  aManaging food hygienecNicholas Johns  aLondon :bMacmillian,cc1991  axvi, 360p. :bill.  aIncludes bibliographical references and index  2Food hygienexPublic aspects of medicine