000 00341nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aKorven, H.C.
245 _aIrrigation on the prairies
260 _aOttawa
260 _c1972
300 _a25 p.
440 _aNo. 1488; Canada Department of
901 _pS21310
942 _cB
_2udc
999 _c126105
_d126105