000 00530 a2200157 4500
080 _a631.62
_bW 769 G
245 1 _aGuide for investigation of subsurface drainage problems on irrigated lands
_cedited by R.J. Winger and J.N. Luthin
260 _aU.S.A.
_bAmerican Society of Agricultural Engineers
650 _aSubsurface Drainage
700 _aWinger, R.J., ed.
700 _aLuthin, J.N., ed.
440 _aSP-04-66
_vAmerican Society of Agricultural Engineers, special
100 _a
_d
300 _a58 p.
901 _a103398
999 _c45098
_d45098