TY  - BOOK
A1  - James Jespersen and Jane Fitz-Randolph; Illustrated by John Robb
TI  - From sundials to atomic clocks; understanding time and frequency
PB  - کتابخانه مرکزی و مرکز نشر دانشگاه بیرجند (دکتر محمد حسن گنجی)
SN  - 104531976
UR  /book/104531976/From-sundials-to-atomic-clocks-understanding-time/
ER  -