TY  - RPRT
TI  - Materials research for clean utilization of coal : quarterly progress report January - March 1977
AU  - Schneider, Samuel J
PY  - 1977
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 77-1252
DO  - 10.6028/NBS.IR.77-1252
ER  -