000			00274nam a22001337a 4500
020			_a0-393-95021-2
082			_a501/03
100			_aWILLIAN T. KEETON _989078
245			_aBIOLOGICAL SCIENCE
250			_a3RD, ED
260			_c1976
300			_aXII, 1075
942			_cBK
999			_c69683 _d69683