Regte klimming: Verskil tussen weergawes
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Lyn 27:
| first = U.S. Naval Observatory Nautical Almanac Office
| last =Nautical Almanac Office
| first2 = U.K. Hydrographic Office
| last2= H.M. Nautical Almanac Office | title = The Astronomical Almanac for the Year 2010
| publisher = U.S. Govt. Printing Office
|