TY  - BOOK
TI  -  Almanac for computers, 1989
PY  - 1989///
CY  -  Washington, D.C. : 
PB  -  National Almanac Office, 
KW  -  Astronomy
KW  -  Periodicals
KW  -  Nautical almanacs
KW  -  Data processing
KW  -  Ethemerides
ER  -