TY  - BOOK
ED  - Her Majesty's Stationery Office
TI  - Astronomical Almanac for the year 1991:data for Astronomy, Space Sciences, Geodesy, Surveying, Navigation and other applications
SN  - 0118869388
U1  - 52(059) H. M. S. O 
PY  - 1990///
PB  - Her Majesty's Stationery Office
KW  - Space Sciences
KW  - Geodesy
KW  - Almanac
KW  - Astronomy
ER  -