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Citation styles for Perturbation

APA style

Perturbation. (2009, February 19). Glottopedia, . Retrieved 14:04, January 29, 2026 from http://glottopedia.org/index.php?title=Perturbation&oldid=8348.

MLA style

"Perturbation." Glottopedia, . 19 Feb 2009, 20:40 UTC. 29 Jan 2026, 14:04 <http://glottopedia.org/index.php?title=Perturbation&oldid=8348>.

MHRA style

Glottopedia contributors, 'Perturbation', Glottopedia, , 19 February 2009, 20:40 UTC, <http://glottopedia.org/index.php?title=Perturbation&oldid=8348> [accessed 29 January 2026]

Chicago style

Glottopedia contributors, "Perturbation," Glottopedia, , http://glottopedia.org/index.php?title=Perturbation&oldid=8348 (accessed January 29, 2026).

CBE/CSE style

Glottopedia contributors. Perturbation [Internet]. Glottopedia, ; 2009 Feb 19, 20:40 UTC [cited 2026 Jan 29]. Available from: http://glottopedia.org/index.php?title=Perturbation&oldid=8348.

Bluebook style

Perturbation, http://glottopedia.org/index.php?title=Perturbation&oldid=8348 (last visited January 29, 2026).

BibTeX entry

 @misc{ wiki:xxx,
   author = "Glottopedia",
   title = "Perturbation --- Glottopedia{,} ",
   year = "2009",
   url = "http://glottopedia.org/index.php?title=Perturbation&oldid=8348",
   note = "[Online; accessed 29-January-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 = "Glottopedia",
   title = "Perturbation --- Glottopedia{,} ",
   year = "2009",
   url = "\url{http://glottopedia.org/index.php?title=Perturbation&oldid=8348}",
   note = "[Online; accessed 29-January-2026]"
 }