000 00501nam a2200133Ia 45e0
008 140109n1957 xxu |||gr||||Z||||||eng
082 _a628
100 _aMarr, James C.,
_eAuthor.,
245 0 _aGrading Land for Surface Irrigation
_cJames C. Marr
_hTextual Documents
260 _aCalifornia
_bUniversity of California
_c1957
300 _a55.
653 _aSanitary & municipal engineering
942 _2ddc
_cTXT
999 _c20911
_d20911