Towards models and constants for sub - microarcsecond astrometry  proceedings of 180th IAU colloquium held in Washington, D. C., U.S.A., March 27-30, 2000 
edited by K. J. Johnston…[et al.]                                          
 - Washington, D. C.  U. S. Naval Observatory  2000 
 - xix, 427p. 
 - IAU Colloquium; no.180 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astrometry
<br/><br/><label>Universal Decimal Class. No.: </label>082.8:52  / IAU-C180