=LDR 22 4500 =001 5049 =082 04$a1970 NEL =100 1\$aNelson, D. M. =245 10$aThe social and economic development of Colchester =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c1970 =650 \0$aDissertations =852 \\$bStaff Coffee Room$h1970 NEL