TY  - BOOK
ED  - Science Service.
TI  - Clocks and watches
T2  - Science Service. Science program
PY  - 1968///]
CY  - Garden City, N.Y.
PB  - N. Doubleday
KW  - Clocks and watches
KW  - History
KW  - fast
KW  - Timekeeper (general)
KW  - Nelson Doubleday
KW  - Rolan, Colin A
KW  - timekeeping
ER  -