TY  - BOOK
ED  - Her Majesty's Nautical Almanac Office
TI  - The astronomical almanac for the year 2018
SN  - 978-0-7077-41772
PY  - 2017///
CY  - Washington
PB  - U. S. Naval Observatory
KW  - Almanac
KW  - Astronomical almanac
KW  - Ephemaris
ER  -