TY  - BOOK
ED  - Her Majesty's Nautical Almanac Office
TI  - The Astronomical Almanac For the Year 1981
PY  - 1980///
CY  - Washington
PB  - U. S. Government Printing Office
KW  - Almanacs
KW  - Ephemerides
KW  - NASA Thesaurus
ER  -