TY  - RPRT
TI  - Conservation and substitution technology for critical materials : volume I
AU  - Gray, Allen G
PY  - 1982
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 82-2495v1
DO  - 10.6028/NBS.IR.82-2495v1
ER  -