000 00461nam a2200145 4500
003 IRIL
082 _a627.1 1968 LAB
100 _aM. E. Hickey
245 _aLaboratory and Field Investigations of Plastic Films as Canal Lining Materials Open and Closed Conduits Systems Program
260 _aColorado
_bUnited States Department of the Interior * Bureau of Reclamation
_c1968
300 _a46
546 _aEnglish
563 _aPBK
942 _2ddc
_cReport
999 _c2193489
_d2193464