=LDR            22        4500
=001  2311
=082  04$a1967 RYD
=100  1\$aRyder, Aidan
=245  10$aThe glacial geomorphology of the Foyle valley
=260  \\$aDublin :$bUniversity of Dublin, Trinity College,$c1967
=650  \0$aDissertations
=852  \\$bStaff Coffee Room$h1967 RYD