International Astronomical Union. Symposium, SpringerLink (Online service), Høg, E., & Seidelmann, P. K. (1995). Astronomical and astrophysical objectives of sub-millarcsecond optical astrometry: Proceedings of the 166th Symposium of the International Astronomical Union held in the Hague, Netherlands, August 15-19, 1994. Kluwer Academic.
Chicago Style (17th ed.) CitationInternational Astronomical Union. Symposium, SpringerLink (Online service), E. Høg, and P. Kenneth Seidelmann. Astronomical and Astrophysical Objectives of Sub-millarcsecond Optical Astrometry: Proceedings of the 166th Symposium of the International Astronomical Union Held in the Hague, Netherlands, August 15-19, 1994. Dordrecht ; Boston: Kluwer Academic, 1995.
MLA (9th ed.) CitationInternational Astronomical Union. Symposium, et al. Astronomical and Astrophysical Objectives of Sub-millarcsecond Optical Astrometry: Proceedings of the 166th Symposium of the International Astronomical Union Held in the Hague, Netherlands, August 15-19, 1994. Kluwer Academic, 1995.