LDR 00469nam a2200133zu 4500 008 090205n chi d 100 1 _aYang, Yunyan 245 _a"Informal Migration" in China since the Reform _bAn Analysis of Census Data _cYang, Yunyan 650 _aEconomy -- Census Data -- Communist Era 773 0 _tSocial Sciences in China _gVol. 19.2 (1998); p. 49-59" 946 _a 001 IFS45107 999 _c316728 _d316728 952 _70 _c1 _40 _00 _9181355 _yBOOK _10 _d2009-05-14 _aIFS