000			00333 a2200145 4500
020			_a0582447518
090			_c5675 _d5675
100			_aWilliams, Janet
245			_aBiology
700			_aWorkman, Chris
260			_aHarlow Essex: _bLongman, _c2002.
300			_avii, 231p.
650			_aBiology.
942			_cBK _kQH308.2 .W54x 2002.
999			_c5675 _d5675