TY  - RPRT
TI  - Circular of the Bureau of Standards no. 293: United States government general specification for textile materials (methods of physical and chemical tests)
PY  - 1925
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 293
DO  - 10.6028/NBS.CIRC.293
ER  -