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Citation styles for Semi-major axis

APA style

Semi-major axis. (2018, June 25). Marspedia, . Retrieved 09:51, April 19, 2026 from https://marspedia.org/index.php?title=Semi-major_axis&oldid=125851.

MLA style

"Semi-major axis." Marspedia, . 25 Jun 2018, 22:39 UTC. 19 Apr 2026, 09:51 <https://marspedia.org/index.php?title=Semi-major_axis&oldid=125851>.

MHRA style

Marspedia contributors, 'Semi-major axis', Marspedia, , 25 June 2018, 22:39 UTC, <https://marspedia.org/index.php?title=Semi-major_axis&oldid=125851> [accessed 19 April 2026]

Chicago style

Marspedia contributors, "Semi-major axis," Marspedia, , https://marspedia.org/index.php?title=Semi-major_axis&oldid=125851 (accessed April 19, 2026).

CBE/CSE style

Marspedia contributors. Semi-major axis [Internet]. Marspedia, ; 2018 Jun 25, 22:39 UTC [cited 2026 Apr 19]. Available from: https://marspedia.org/index.php?title=Semi-major_axis&oldid=125851.

Bluebook style

Semi-major axis, https://marspedia.org/index.php?title=Semi-major_axis&oldid=125851 (last visited April 19, 2026).

BibTeX entry

 @misc{ wiki:xxx,
   author = "Marspedia",
   title = "Semi-major axis --- Marspedia{,} ",
   year = "2018",
   url = "https://marspedia.org/index.php?title=Semi-major_axis&oldid=125851",
   note = "[Online; accessed 19-April-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 = "Marspedia",
   title = "Semi-major axis --- Marspedia{,} ",
   year = "2018",
   url = "\url{https://marspedia.org/index.php?title=Semi-major_axis&oldid=125851}",
   note = "[Online; accessed 19-April-2026]"
 }