000 00309nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a330.34
_bHAV
100 _aHAVENS, A Eugene
245 0 _aMethodological issues in the study of development
260 _aMadison
_bUniversity of Wisconsin
_c1972
942 _cBK
999 _c23215
_d23215