TY  - BOOK
AU  - Dick, Steven., ed.
AU  - Luzum, B., ed.
AU  - McCarthy, D., ed.
ED  - Astronomical Society of the Pacific
ED  - International Astronomical Union colloquium
TI  - Polar motion: historical and scientific problems; proceedings of IAU colloquium no. 178 held in Sardinia, Italy, September 27-30, 1999
T2  - ASP conference series; v. 208
SN  - 1-58381-039-0
PY  - 2000///
CY  - California
PB  - Astronomical Society of the Pacific
KW  - History - early polar motion
KW  - Observational techniques
ER  -