=LDR            22        4500
=001  3598
=082  04$a1989 LED
=100  1\$aLeddy, Margo
=245  10$aMeasurements of nitrogen oxides and suspended particulates at two dissimilar urban sites in Dublin
=260  \\$aDublin :$bUniversity of Dublin, Trinity College,$c1989
=650  \0$aTheses
=852  \\$bFreeman Library$h1989 LED