000 00516nam a2200097Ia 4500
008 120223s9999 xx 000 0 und d
082 _a631.54 JOH
100 _aJohnson, C.B.
245 _aPhysiological processes limiting plant productivity
260 _bButterworths
_aLondon
_c1981
999 _c152837
_d152837