@misc{Jones_H._Spencer_Magnitudes_1927,
 author={Jones, H. Spencer},
 address={London},
 howpublished={online},
 year={1927},
 publisher={His Majesty's Stationery Office},
 language={eng},
 title={Magnitudes of stars contained in the Cape Zone Catalogue of 20,843 stars for equinox 1900 zones -40° to -52°},
 keywords={star catalogue, Cape zone catalogue, zone -40° to -52°, the equinox 1900},
}