000 00295nam a2200121Ia 4500
008 170101s1960 xx 000 0 und d
082 _a632.58 HAR
100 _aHarper John L.
245 4 _aThe Biology of Weeds
260 _aOxford
_bScientific Pub.
_c1960
300 _a256 p.
942 _2ddc
_cB
999 _c52816
_d52816