Podobné jednotky

• Accurate positions and some optical identifications for 67 radio sources between declinations +20° and +27° /
  Autor: Merkelijn, Jeannette K., a další
  Vydáno: (1968)
• Accurate positions and some optical identifications for 255 radio sources between declinations +20° and -33° /
  Autor: Merkelijn, Jeannette K.
  Vydáno: (1969)
• Accurate positions and identifications of 75 radio sources between declinations +20° and +27° /
  Autor: Merkelijn, Jeannette K.
  Vydáno: (1968)
• On the identification of extragalactic radio sources /
  Autor: Mills, Bernard Yarnton, 1920-2011
  Vydáno: (1960)
• The Parkes catalogue of radio sources declination zone -20° to -60° /
  Autor: Bolton, J. G., 1922-1993, a další
  Vydáno: (1964)