Citation styles for Purine base

APA style

Purine base. (2006, February 20). Opengenome.net, . Retrieved 06:38, February 4, 2026 from http://Opengenome.net/index.php?title=Purine_base&oldid=8387.

MLA style

"Purine base." Opengenome.net, . 20 Feb 2006, 15:05 UTC. 4 Feb 2026, 06:38 <http://Opengenome.net/index.php?title=Purine_base&oldid=8387>.

MHRA style

Opengenome.net contributors, 'Purine base', Opengenome.net, , 20 February 2006, 15:05 UTC, <http://Opengenome.net/index.php?title=Purine_base&oldid=8387> [accessed 4 February 2026]

Chicago style

Opengenome.net contributors, "Purine base," Opengenome.net, , http://Opengenome.net/index.php?title=Purine_base&oldid=8387 (accessed February 4, 2026).

CBE/CSE style

Opengenome.net contributors. Purine base [Internet]. Opengenome.net, ; 2006 Feb 20, 15:05 UTC [cited 2026 Feb 4]. Available from: http://Opengenome.net/index.php?title=Purine_base&oldid=8387.

Bluebook style

Purine base, http://Opengenome.net/index.php?title=Purine_base&oldid=8387 (last visited February 4, 2026).

BibTeX entry

 @misc{ wiki:xxx,
   author = "Opengenome.net",
   title = "Purine base --- Opengenome.net{,} ",
   year = "2006",
   url = "http://Opengenome.net/index.php?title=Purine_base&oldid=8387",
   note = "[Online; accessed 4-February-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 = "Opengenome.net",
   title = "Purine base --- Opengenome.net{,} ",
   year = "2006",
   url = "\url{http://Opengenome.net/index.php?title=Purine_base&oldid=8387}",
   note = "[Online; accessed 4-February-2026]"
 }