=LDR 22 4500 =001 643 =082 04$a1972 DAY =100 1\$aDay, Maureen E. =245 10$aChanges in the rural economy of Wensleydale since 1800 =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c1972 =650 \0$aDissertations =852 \\$bStaff Coffee Room$h1972 DAY