000			00548nam a22002057a 4500
015			_a2941
041			_a1
080			_a624.012 _bCON
110			_aDepartment of the Interior Bureau of Reclamation _cUnited State
245			_aConcrete manual
250			_aSeventh
260			_aU.S. Government Printing Office _bWashington _c1966
300			_a642p. _bILL, Fig., Chart, Table
650			_aEngineering
852			_a3R-1-1
999			_c1109 _d1109