000			00342nam a2200145Ia 4500
008			231217s9999 xx 000 0 und d
041			_aEnglish
082			_a574 _bKEB
100			_aKeeton, William T.
245		0	_aBiological Science
250			_a2nd
260			_aNew York _bW.W. Norton And Company _c1972
300			_a888
942			_cBK
999			_c10226 _d10226