000 00420nam a2200157Ia 4500
008 180820s9999 xx 000 0 und d
050 _aC 317.73 Un3s 1991
100 _aU. S. Department of Commerce
245 0 _aStatistical abstract of the United States 1991
260 _aWashington
260 _bThe National Data Book
260 _c1991
300 _a986
650 _aUnited States - Statistics
942 _cBK
999 _c61249
_d61249