000			00357nam a2200145Ia 4500
008			180613s9999||||xx |||||||||||||| ||und||
020			_a408106492
041			_aen
082			_a631.54
100			_aJOHNSON,C.B
245		0	_aPhysiological processes limiting plant productivity
260			_aLondon. _bButterworths _c1981
300			_a395p.
942			_cSR
999			_c79888 _d79888