000			00429nam a2200145Ia 4500
008			210101s1969 xx 000 0 eng d
082			_a581.1 E 13 P
100			_aEastin, Jerry D. ed
245		0	_aPhysiological aspects of crop yield
260			_aMadison, Wisconsin, USA _bAmerican society of agronomy _c1969
300			_a396
650			_aPlant Physiology
700			_aHaskins, F.A. ed. Sullivan, C.Y. ed.
942			_2ddc _cBK
999			_c2649 _d2649