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Bibliographic details for Southwestern Illinois Area Underclay

Citation styles for Southwestern Illinois Area Underclay

APA style

Southwestern Illinois Area Underclay. (2021, March 19). ILMINES WIKI, Illinois State Geological Survey. Retrieved 18:32, December 16, 2025 from https://ilmineswiki.web.illinois.edu/index.php?title=Southwestern_Illinois_Area_Underclay&oldid=26881.

MLA style

"Southwestern Illinois Area Underclay." ILMINES WIKI, Illinois State Geological Survey. 19 Mar 2021, 13:52 UTC. 16 Dec 2025, 18:32 <https://ilmineswiki.web.illinois.edu/index.php?title=Southwestern_Illinois_Area_Underclay&oldid=26881>.

MHRA style

ILMINES WIKI contributors, 'Southwestern Illinois Area Underclay', ILMINES WIKI, Illinois State Geological Survey, 19 March 2021, 13:52 UTC, <https://ilmineswiki.web.illinois.edu/index.php?title=Southwestern_Illinois_Area_Underclay&oldid=26881> [accessed 16 December 2025]

Chicago style

ILMINES WIKI contributors, "Southwestern Illinois Area Underclay," ILMINES WIKI, Illinois State Geological Survey, https://ilmineswiki.web.illinois.edu/index.php?title=Southwestern_Illinois_Area_Underclay&oldid=26881 (accessed December 16, 2025).

CBE/CSE style

ILMINES WIKI contributors. Southwestern Illinois Area Underclay [Internet]. ILMINES WIKI, Illinois State Geological Survey; 2021 Mar 19, 13:52 UTC [cited 2025 Dec 16]. Available from: https://ilmineswiki.web.illinois.edu/index.php?title=Southwestern_Illinois_Area_Underclay&oldid=26881.

Bluebook style

Southwestern Illinois Area Underclay, https://ilmineswiki.web.illinois.edu/index.php?title=Southwestern_Illinois_Area_Underclay&oldid=26881 (last visited December 16, 2025).

BibTeX entry

 @misc{ wiki:xxx,
   author = "ILMINES WIKI",
   title = "Southwestern Illinois Area Underclay --- ILMINES WIKI{,} Illinois State Geological Survey",
   year = "2021",
   url = "https://ilmineswiki.web.illinois.edu/index.php?title=Southwestern_Illinois_Area_Underclay&oldid=26881",
   note = "[Online; accessed 16-December-2025]"
 }

When using the LaTeX package url (\usepackage{url} somewhere in the preamble) which tends to give much more nicely formatted web addresses, the following may be preferred: 

 @misc{ wiki:xxx,
   author = "ILMINES WIKI",
   title = "Southwestern Illinois Area Underclay --- ILMINES WIKI{,} Illinois State Geological Survey",
   year = "2021",
   url = "\url{https://ilmineswiki.web.illinois.edu/index.php?title=Southwestern_Illinois_Area_Underclay&oldid=26881}",
   note = "[Online; accessed 16-December-2025]"
 }


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