TY  - RPRT
TI  - Circular of the Bureau of Standards no. 115: recommended specifications for pneumatic tires, solid tires, and inner tubes
PY  - 1921
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 115
DO  - 10.6028/NBS.CIRC.115
ER  -