00335pab a2200121 454500008004000000100002000040245008100060260000900141300001500150362000800165650002200173773001800195180718b2008   xxu||||| |||| 00| 0 eng d  aSpivey, Christy  aThe mills-muth model of urban spatial structure: surviving the test of time?  c2008  ap.295-312.  aFeb  aUrban development  aUrban Studies