TY  - RPRT
TI  - Directory of commercial and college laboratories/ 
AU  - Thompson, George N
AU  - Rapuzzi, Ann E
PY  - 1947
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS MP 187
DO  - 10.6028/NBS.MP.187
ER  -