TY  - RPRT
TI  - Tests of prestressed cellular slabs (Slabs Nos. 20 through 27) 
AU  - Kirstein, Arthur F
PY  - 1957
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 5714
DO  - 10.6028/NBS.RPT.5714
ER  -