000 00375nam a2200133Ia 4500
008 130223s9999 xx 000 0 und d
100 _aJarvis, R.J.
245 _aContinuous cereal cropping with alternative tillage system in Western Australia
260 _aAustralia
260 _c1986
440 _aNo. 71; Western Australia, Dep
901 _pS38419
942 _cB
_2udc
999 _c118724
_d118724