TY  - RPRT
TI  - Circular of the Bureau of Standards no. 239 2nd edition: United States government master specification for packing, flax
PY  - 1927
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 239e2
DO  - 10.6028/NBS.CIRC.239e2
ER  -