000 00301nam a2200121Ia 4500
008 170101s1959 xx 000 0 und d
082 _a633.3 IVI
100 _aIvins J. D.
245 0 _aMeasurement of Grassland Productivity
260 _aLondon
_bB. S. P.
_c1959
300 _a217 p.
942 _2ddc
_cB
999 _c19416
_d19416