000			00330nam a2200145Ia 4500
008			180611s9999||||xx |||||||||||||| ||und||
020			_a07231-0629-0
041			_aen
082			_a574
100			_aABBOTT, David.
245		0	_aBiology
260			_aLondon. _bUniversity tutorial press _c1976
300			_a192p,illus
942			_cLL
999			_c630 _d630