TY  - SER
ED  - NAWCC Chapter 168.
TI  - The torsion times: a publication of the national 400-day clock chapter #168
PY  - 1996///-
CY  - [Place of publication not identified]
PB  - [NAWCC national 400-day clock chapter #168]
KW  - Clocks and watches
KW  - Periodicals
KW  - Torsion pendulum
ER  -