00322nam a22001097a 4500082002100000100002000021245003500041260006100076300003200137526003700169650000600206  a624.1834bENGcD  aE in C's Branch  aStandard practice for concrete  aDepartment of the armybOffice of the Chief of Engineers  av, 5-25 p. :bill. :c10 Cm  a0b0c0d624_183400000000000_ENG  aD