=LDR            22        4500
=001  749
=082  04$a307.76 OPE
=110  2\$aOpen University
=245  10$aThe city as a social system
=260  \\$bOpen University Press,$c1973
=650  \0$aBooks
=852  \\$bFreeman Library$h307.76 OPE$zNot located