000			00771nam a2200169 a 4500
005			20220228110622.0
035			_aF8901000708811
084			_aPCA BUL D51 1961
100			_aMattock, Alan H.
245			_aPrecast-prestressed concrete bridges 6. test of half-scale -highway bridge continuous over two spans / by Alan H. Matto-ck and Paul H. Kaar
260			_aSkokie, Illinois : atories, Development Department
300			_a[48] p.
440			_aBulletin D51 / Portland Cement Association, Research and De-velopment Laboratories, Development Department
500			_a"Reprinted from the Journal of the PCA Research and Develop-ment Laboratories Vol. 3, No. 3, 30-70 (september, 1961)."
690			_aPuentes de concreto - Pruebas.
700			_aKaar, Paul H., coaut.
999			_c58816 _d58816