TY  - RPRT
TI  - Construction materials for coal conversion 
AU  - Ondik, Helen M
AU  - Christ, Bruce W
AU  - Perloff, Alvin
PY  - 1982
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 642
DO  - 10.6028/NBS.SP.642
ER  -