| APA | CIRN. (2012, February 16). In Acronym Geek. Retrieved 16:16, February 16, 2012, from http://www.acronymgeek.com/CIRN |
| MLA | "CIRN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/CIRN>. |
| MHRA | 'CIRN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/CIRN> [accessed 16 February 2012] |
| Chicago | "CIRN", http://www.acronymgeek.com/CIRN (accessed February 16, 2012). |
| CBE/CSE | CIRN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/CIRN. |
| Bluebook | CIRN, http://www.acronymgeek.com/CIRN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CIRN, http://www.acronymgeek.com/CIRN (optional description here) (as of Feb. 16, 2012, 16:16). |
| AMA | CIRN. Acronym Geek. February 16, 2012, 16:16. Available at: http://www.acronymgeek.com/CIRN. Accessed February 16, 2012, 16:16. |