1. The greatest comets in history : broom stars and celestial scimitars / David Seargeant Author: Seargent, D. A. J. (David Allan John), 1947- Format: Book Language: English Published: c2009
2. A Final report for Origins of Solar Systems Workshop [microform] : the origin, evolution, and detectability of short period comets / submitted to National Aeronautics and... Format: Book and Microform Language: English Published: [1993]
3. [Molecular processes in comets] [microform] : [final report, 1 Jan. 1978 - 31 Dec. 1988] Format: Book and Microform Language: English Published: 1993]
4. Molecular processes in comets [microform] : progress eport for the period November 1, 1992 to October 31, 1993 Format: Book and Microform Language: English Published: 1993]
5. A semi-annual report for studies of extra-solaʹr oort clouds and the Kuiper disk [microform] / submitted by S. Alan Stern, principal investigator Author: Stern, S. Alan Format: Book and Microform Language: English Published: 1992]
6. Distribution of gas in the inner comae of comets [microform] / by Michael R. Combi Author: Combi, Michael R Format: Book and Microform Language: English Published: 1990]
7. The volatile composition of comets [microform] / H.A. Weaver Author: Weaver, Harold A., 1953- Format: Book and Microform Language: English Published: [1988]
8. Cometary atmospheres [microform] : modeling the spatial distribution of observed neutral radicals / Michael R. Combi Author: Combi, Michael R Format: Book and Microform Language: English Published: 1985]
9. The international cometary explorer (ICE) wallsheet teacher's guide [microform] / edited by Stephen P. Maran Format: Book and Microform Language: English Published: [1985]
10. The study of the physics of cometary nuclei [microform] : semiannual progress reports no. 20 and 21 for the period 1 April 1984 through 31 March 1985 / principal... Author: Whipple, Fred Lawrence, 1906- Format: Book and Microform Language: English Published: 1985]