TY  - BOOK
AU  - Duncan, David Ewing
TI  - The Calendar: 
SN  - 1-85702-979-8.
AV  - CE6.D86 
CY  - London
KW  -  Auxiliary sciences of history
KW  -  Chronology
KW  -  Historical
KW  - Calendar
KW  - Calendar--History
ER  -