@misc{Bhaskaran_T._P._Astrographic_1921,
 author={Bhaskaran, T. P.},
 address={Edinburgh},
 howpublished={online},
 year={1921},
 publisher={Neill and CO.},
 language={eng},
 title={Astrographic Catalogue 1900.0. Hyderabad Section Dec. -16° to -21°. Vol. IV. Measures of rectangular co-ordinates and diameters of 79,590 star-images on plates with centres in Dec. -20°},
 keywords={astrographic catalogue, stellar photometry, star declination -20°, Nizamiah observatory},
}