TY  - BOOK
AU  - Zubkov, Boris.
AU  - Babakov, I.
TI  - Tomorrow? Yesterday?
U1  - 681.81 
PY  - 1981///
PB  - Malysh Publishers Moscow
KW  - Astronomy
KW  - Russian Literature-Translated
KW  - Science
KW  - TIme
KW  - Time measurement
KW  - Time-History
N2  - A book describing history and evolution of measuring time at different epochs. Discusses various natural phenomena which were used to keep calendars and inventions of clocks to measure time. The book also touches upon the circadian rhythm present in all living organisms. Final part discusses aspects of time management in factories
ER  -