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Bibliographic details for Porters Creek Formation

Citation styles for Porters Creek Formation

APA style

Porters Creek Formation. (2017, January 12). ILSTRAT, Illinois State Geological Survey. Retrieved 16:49, July 22, 2026 from https://ilstratwiki.web.illinois.edu/index.php?title=Porters_Creek_Formation&oldid=15593.

MLA style

"Porters Creek Formation." ILSTRAT, Illinois State Geological Survey. 12 Jan 2017, 22:58 UTC. 22 Jul 2026, 16:49 <https://ilstratwiki.web.illinois.edu/index.php?title=Porters_Creek_Formation&oldid=15593>.

MHRA style

ILSTRAT contributors, 'Porters Creek Formation', ILSTRAT, Illinois State Geological Survey, 12 January 2017, 22:58 UTC, <https://ilstratwiki.web.illinois.edu/index.php?title=Porters_Creek_Formation&oldid=15593> [accessed 22 July 2026]

Chicago style

ILSTRAT contributors, "Porters Creek Formation," ILSTRAT, Illinois State Geological Survey, https://ilstratwiki.web.illinois.edu/index.php?title=Porters_Creek_Formation&oldid=15593 (accessed July 22, 2026).

CBE/CSE style

ILSTRAT contributors. Porters Creek Formation [Internet]. ILSTRAT, Illinois State Geological Survey; 2017 Jan 12, 22:58 UTC [cited 2026 Jul 22]. Available from: https://ilstratwiki.web.illinois.edu/index.php?title=Porters_Creek_Formation&oldid=15593.

Bluebook style

Porters Creek Formation, https://ilstratwiki.web.illinois.edu/index.php?title=Porters_Creek_Formation&oldid=15593 (last visited July 22, 2026).

BibTeX entry

 @misc{ wiki:xxx,
   author = "ILSTRAT",
   title = "Porters Creek Formation --- ILSTRAT{,} Illinois State Geological Survey",
   year = "2017",
   url = "https://ilstratwiki.web.illinois.edu/index.php?title=Porters_Creek_Formation&oldid=15593",
   note = "[Online; accessed 22-July-2026]"
 }

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 = "ILSTRAT",
   title = "Porters Creek Formation --- ILSTRAT{,} Illinois State Geological Survey",
   year = "2017",
   url = "\url{https://ilstratwiki.web.illinois.edu/index.php?title=Porters_Creek_Formation&oldid=15593}",
   note = "[Online; accessed 22-July-2026]"
 }


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