000			00320nam a2200133Ia 4500
008			241230s9999||||xx |||||||||||||| ||und||
020			_a021692989-X
100			_aMaitland, Peter S. _9102171
245		0	_aBiology Of Fresh Waters
250			_a2nd
260			_bBlackie _aLondon _c1990
300			_a276p.
942			_cBK
999			_c264671 _d264671