TY - RPRT TI - Test of precast prestressed roof panel no. 3 (Type B) AU - Skoda, L F AU - Bryson, J O AU - Watstein, D PY - 1954 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS RPT 3792 DO - 10.6028/NBS.RPT.3792 ER -