الدهر الجهنمي (Arabic Wikipedia)

Analysis of information sources in references of the Wikipedia article "الدهر الجهنمي" in Arabic language version.

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anu.edu.au

wwwrses.anu.edu.au

anu.edu.au

archive.org

archive.today

books.google.com

  • Bleeker، W. (2004). "10. Toward a "natural" Precambrian time scale". في Gradstein، Felix M.؛ Ogg، James G.؛ Smith، Alan G. (المحررون). A Geologic Time Scale 2004. Cambridge, England, UK: Cambridge University Press. ص. 145. مؤرشف من الأصل في 2016-05-15.

cfcc.edu

doi.org

excite.com

apnews.excite.com

harvard.edu

ui.adsabs.harvard.edu

nasa.gov

solarsystem.nasa.gov

ntrs.nasa.gov

nih.gov

pubmed.ncbi.nlm.nih.gov

ncbi.nlm.nih.gov

nytimes.com

pnas.org

purdue.edu

engineering.purdue.edu

researchgate.net

stratigraphy.org

  • "International chronostratigraphic chart v2018/08" (PDF) (بالإنجليزية). {{استشهاد ويب}}: الوسيط غير المعروف |site= تم تجاهله يقترح استخدام |website= (help) and روابط خارجية في |site= (help).

talkorigins.org

usgs.gov

pubs.usgs.gov

  • Newman، William L. (9 يوليو 2007). "Age of the Earth". Publications Services, USGS. مؤرشف من الأصل في 2019-04-07. اطلع عليه بتاريخ 2007-09-20.
  • "Age of the Earth". U.S. Geological Survey. 1997. مؤرشف من الأصل في 2005-12-23. اطلع عليه بتاريخ 2006-01-10.

web.archive.org

wisc.edu

geology.wisc.edu

worldcat.org