TY  - BOOK
AU  - Donn, B., ed.
ED  - International Astronomical Union Colloquium
ED  - International Astronomical Union 
TI  - The study of comets: pt. 2, proceedings of the International Astronomical Union Colloquium No.25, Co-sponsored by COSPAR and held at Goddard Space Flight Center, Green Belt, Maryland, October 28-November 1, 1974
T2  - NASA SP-393; no. 25
PY  - 1976///
CY  - Washington
PB  - National Aeronautics and Space Administration
KW  - Astronomy and Astrophysics Thesaurus
KW  - Comets
N1  - Donated by Mrs. Bappu
ER  -