TY  - RPRT
TI  - Circular of the Bureau of Standards no. 449: hydrometer correction tables and thermal-density coefficients for vegetable tanning extracts
AU  - Blair, Mary Grace
AU  - Peffer, Elmer L
PY  - 1945
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 449
DO  - 10.6028/NBS.CIRC.449
ER  -