000 00590 a2200181 04500
001 2462
008 050529s1976 0 d
082 0 _a627.13
_bU581L
110 2 _aU.S. Department of the Interior
_966349
245 0 _aLinings for irrigation canals:
_bincluding a progress report on the lower cost canal lining program.
260 4 _aWashington.:
_bU.S.Department of the interior.
_c1976.
300 4 _a149. p.
650 _aCanales de riego
_966350
650 _aRevestimientos
_949492
650 _aRiego
_966351
942 _2ddc
_cBK
999 _c2851
_d2851