Photographic magnitudes of stars brighter than 9m.0 between declination +75⁰ and the pole
determined at Royal observatory, Greenwich, under the direction of F. W. Dyson.

APA Citation

Royal Greenwich Observatory. (1913). Photographic magnitudes of stars brighter than 9m.0 between declination +75⁰ and the pole: determined at Royal observatory, Greenwich, under the direction of F. W. Dyson. London: H. M. Stationery off., Neill & co., limited, Bellevue, Edinburgh [printers].

MLA Citation

Royal Greenwich Observatory. Photographic Magnitudes of Stars Brighter Than 9m.0 Between Declination +75⁰ And the Pole: Determined At Royal Observatory, Greenwich, Under the Direction of F. W. Dyson. London: H. M. Stationery off., Neill & co., limited, Bellevue, Edinburgh [printers], 1913.