1821 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "1821" in English language version.

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bbc.co.uk

books.google.com

britannica.com

doi.org

islalocalcouncil.com

jstor.org

nih.gov

ncbi.nlm.nih.gov

pubmed.ncbi.nlm.nih.gov

theguardian.com

  • "History of the Guardian". The Guardian. December 11, 2017. ISSN 0261-3077. Retrieved June 19, 2019.

web.archive.org

worldcat.org

  • "History of the Guardian". The Guardian. December 11, 2017. ISSN 0261-3077. Retrieved June 19, 2019.
  • Headland, Robert K. (1989). Chronological list of Antarctic expeditions and related historical events. Cambridge University Press. ISBN 978-0-521-30903-5. OCLC 185311468.
  • Viets, Henry R. (1961). ""By The Visitation Of God": The Death Of John William Polidori, M.D., In 1821". The British Medical Journal. 2 (5269): 1773–1775. doi:10.1136/bmj.2.5269.1773. ISSN 0007-1447. JSTOR 20356143. PMC 1970869. PMID 14037964.