000			00339nam a22001337a 4500
008			130228b xxu||||| |||| 00| 0 eng d
020			_a9251001650
050			_aTC 930.K7 _b1900
245			_aIrrigation canal lining _cKraatz,D.B
260			_c1977
300			_axviii,199pg:
500			_aincludes bibliographic references
942			_2lcc _cBK
999			_c672 _d672