Author
Council for the Central Laboratory of the Research Councils (Great Britain)
1
Great Britain. Hydrographic Office
1
Great Britain. Nautical Almanac Office
1
Rutherford Appleton Laboratory
1
Science Research Council (Great Britain)
1
Science and Engineering Research Council (Great Britain)
1
United States Naval Observatory. Nautical Almanac Office
1
United States. Congress
1
United States. Department of the Navy
1