@misc{Christie_William_Henry_Mahoney_Astrographic_1904,
 author={Christie, William Henry Mahoney},
 address={Edinburgh},
 howpublished={online},
 year={1904},
 publisher={Neill and CO.},
 language={eng},
 title={Astrographic Catalogue 1900.0 Greenwich Section Dec. +64° to 90°},
 title={Vol. I. Measures of rectangular co-ordinates and diameters of star images Dec. +64° to +72°°},
 keywords={astrographic catalogue, star declination +64° to +72°, Greenwich observatory},
}