TY  - RPRT
TI  - Circular of the Bureau of Standards no. 368: United States government master specification for shades, window; rollers; slats; cords; and accessories
PY  - 1928
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 368
DO  - 10.6028/NBS.CIRC.368
ER  -