TY  - RPRT
TI  - Clinical investigation of a radiopaque composite restorative material : progress report
AU  - Chandler, H H
AU  - Bowen, R L
AU  - Paffenbarger, G C
AU  - Mullineaux, A L
PY  - 1969
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 10063
DO  - 10.6028/NBS.RPT.10063
ER  -