TY  - BOOK
ED  - Her Majesty's Nautical Almanac Office
TI  - Explanatory Supplement to The Astronomical Ephemeris and The American Ephemeris and Nautical Almanac prepared jpintly by the Nautical Almanac Offices of the United Kingdom and The United States of America
PY  - 1961///
CY  - London
PB  - Her Majesty's Stationery Office
KW  - Astrometría
KW  - astrometría
ER  -