000			00356pam a2200157 a 4500
999			_c3453 _d3453
020			_a0879011866
082	0	0	_a574 _bC87
100			_aCurtis, Helena
245	0	0	_aBiology
250			_a4th ed
260			_aNew York _bWorth Publishers _cc1983.
300			_axxvi, 1159 p. : _bill. ; 26 cm,
500			_aIncludes index.
650		0	_aBiology
942			_cBK