TY  - BOOK
AU  - Gloria Skurzynski
TI  - On Time: from seasons to split seconds 
SN  - 0792275039
U1  - 529 
PY  - 2000///
CY  - Washington, D.C.
PB  - National Geographic Society
KW  - Non Fiction
N2  - Examines the ways humans have measured time throughout history and discusses the various units that are used to keep track of it
ER  -