TY  - BOOK
AU  - Richmond,Broughton
TI  - Time measurement and calandar contsruction / 
U1  - 529.3 RIC 
PY  - 1956///
CY  - Leiden : 
PB  - E. J. Brill, 
KW  - Calendar
N1  -  "Juilian calendar as illustrated in the Book of hours which is kept in the Conde Museum at Chantilly, France": (p. [207]-[220])
ER  -