000			00376nam a2200145Ia 4500
003			NIELib
008			211019s9999||||xx |||||||||||||| ||und||
082			_a575.1 _bBUL
100			_917355 _aBullough, William S.
245			_aThe evolution of differentiation
260			_bAcademic Press, _c1967. _aLondon :
300			_avi,206p.; _c24cm
650			_aBiology
942			_2ddc _cLM
999			_c34447 _d34447