NGC 7421 (Arabic Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 7421" in Arabic language version.

refsWebsite
Global rank Arabic rank
18th place
33rd place
43rd place
2nd place

harvard.edu

ui.adsabs.harvard.edu

  • Gérard de Vaucouleurs (1991), Third Reference Catalogue of Bright Galaxies, Version 9 (بالإنجليزية), New York City: Springer Science+Business Media, Bibcode:1991rc3..book.....D, QID:Q66617601

wikidata.org

  • Gérard de Vaucouleurs (1991), Third Reference Catalogue of Bright Galaxies, Version 9 (بالإنجليزية), New York City: Springer Science+Business Media, Bibcode:1991rc3..book.....D, QID:Q66617601