TY - RPRT TI - Test of precast prestressed roof panel no. 1 (type A) AU - Valenti, C T AU - Reichard, T W AU - Skoda, Leopold F AU - Watstein, D PY - 1953 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS RPT 2295 DO - 10.6028/NBS.RPT.2295 ER -