TY  - GEN
AU  - Jespersen, James
AU  - Fitz-Randolph, Jane
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1999-01-01 05:01:00
DO  - https://doi.org/10.6028/NBS.MONO.155e1999
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1999
TI  - From sundials to atomic clocks ::understanding time and fluency
ER  -