TY  - BOOK
AU  - Yeomans, Donald K.
TI  - Cometary astrometry
PY  - 1984///
CY  - California
PB  - National Aeronautics and Space Administration
KW  - Astrometry
KW  - Astronomy and astrophysics thesaurus
KW  - Comets
KW  - Planetary systems
ER  -