TY  - BOOK
AU  - A'Hearn, M., ed.
AU  - Donn, B., ed.
AU  - Jackson, W., ed.
AU  - Mumma, M., ed.
ED  - International Astronomical Union colloqium
ED  - International Astronomical Union
TI  - The study of comets: pt. 1, proceedings of the IAU colloquium No. 25 held in Maryland, Goddard Space Flight Center, Greenbelt, Maryland October 28 November 1, 1974
T2  - NASA SP; 393
PY  - 1976///
CY  - Washington
PB  - National Aeronautics and Space Administration
KW  - Astronomy and astrophysics thesaurus
KW  - Comets
N1  - Donated by Mrs. Bappu
ER  -