NGC 7139 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 7139" in Polish language version.

refsWebsite
Global rank Polish rank
5,388th place
2,254th place
low place
2,148th place

cseligman.com

  • Courtney Seligman: NGC 7139. Celestial Atlas. [dostęp 2014-08-31]. (ang.).

seds.org

spider.seds.org

  • NGC 7139 w serwisie SEDS.org (Revised NGC and IC Catalog) (ang.)