00662cam a2200229 a 45000010008000000030008000080050017000160080041000330100017000740200015000910400027001060500021001330820020001541000020001742450061001942600046002553000035003013650015003365040051003516500010004026500020004123040227BD-DhUL20150304102127.0950412s1996    enka     b    001 0 eng    a   95140207   a1853831921  aDLCcDLCdDLCdBD-DhUL00aRA576b.E47 199600a363.73220bELS1 aElsom, Derek M.10aSmog alert :bmanaging urban air quality /cDerek Elsom.  aLondon :bEarthscan Publications,cc1996.  axiii, 226 p. :bill. ;c24 cm.  aUSDb24.20  aIncludes bibliographical references and index. 0aSmog. 0aAirxPollution.