000			00348nam a2200145Ia 4500
001			9220
008			170722s9999 xx 000 0 und d
100			_aVickery B. C.
245			_aClassification and indexing in science /
250			_a2nd ed.
260			_c1961
653			_aLibrary Science
653			_aScience-classification
942			_cGEN
999			_c24777 _d24777