=LDR            22        4500
=001  2837
=082  04$a1994 WAL
=100  1\$aWalsh, Catherine M.
=245  10$aIndustrial air monitoring and validation
=260  \\$aDublin :$bUniversity of Dublin, Trinity College,$c1994
=650  \0$aTheses
=852  \\$bFreeman Library$h1994 WAL