TY  - BOOK
ED  - United States. Government Printing Office
TI  - The astronomical Almanac for the year 1990
SN  - 011 886934 5
PY  - 1989///
CY  - Washington
PB  - U. S. Government Printing Office
KW  - Almanacs
KW  - Ephemerides
KW  - NASA
ER  -