000 00395nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aRobertson, G.W., Holmes, R.M.
245 _aEstimating irrigation water requirements from meteorological data
260 _aOttawa
260 _c1959
300 _a0.5
440 _aCanada Department of Agriculture
901 _pS171
942 _cB
_2udc
999 _c121613
_d121613