@misc{Christie_William_Henry_Mahoney_Astrographic_1908,
 author={Christie, William Henry Mahoney},
 address={Edinburgh},
 howpublished={online},
 year={1908},
 publisher={His Majesty's Stationery Office},
 language={eng},
 title={Astrographic Catalogue 1900.0 Greenwich Section Dec. +64° to +90 .},
 title={Vol. II. Measures of rectangular co-ordinates and diameters of star images Dec. +72° to +90°},
 keywords={astrographic catalogue, star declination +72° to +90°, Greenwich observatory},
}