TY  - RPRT
TI  - Evaluation of refractory qualities of concretes for jet aircraft warm-up, power check maintenance aprons, and runways 
AU  - Ryan, J V
AU  - Tuma, E C
AU  - Bettum, W N
PY  - 1964
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 8342
DO  - 10.6028/NBS.RPT.8342
ER  -