000			00409nam a2200145Ia 4500
008			130910s9999 xx 000 0 und d
041			_aeng
082			_221st ed. _aR 503 _bVAN, 4
245			_aVan Nostrands scientific encyclopedia.
250			_a4th ed.
260			_aToronto : _bD. Van Nostrand , _c1968
300			_aix, 2008p.: ill ; _c30cm
653			_aScience-Encyclopedias and dictionaries
942			_cEN _2ddc
999			_c24716 _d24716