Catalogue of galaxies and of clusters of galaxies vol. 5, covering the palomar survey fields of the declination zones 0 degree +6 degree, +12 degrees, +18 degrees, between 19 hours 30 minutes and 6 hours 00 minutes in right ascension - Zwicky, Fritz; Karpowicz, Maria; Kowal, C. T. (California California Institute of Technology, 1965)
Keywords: Astronomy and Astrophysics Thesaurus; Catalogue-Galaxies; Galaxies Catalogue