000			00495nam a22002057a 4500
015			_a217
041			_a1
080			_a624.012.46 _bMAG
100			_aMagnel, G.
245			_aPrestressed concrete
250			_aSecond
260			_aConcrete Publications Limited _bLondon _c1950
300			_a300 p. _bILL, Fig., Chart, Table
650			_aEngineering
852			_a3R-1-1
999			_c121 _d121