NGC 3999 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 3999" in Polish language version.

refsWebsite

Global rank Polish rank

887^th place

766^th place

low place

2,148^th place

caltech.edu

ned.ipac.caltech.edu

NGC 3999 w NASA/IPAC Extragalactic Database (ang.)

cseligman.com

Courtney Seligman: NGC 3999. Celestial Atlas. [dostęp 2015-06-12]. (ang.).