| APA | CRN. (2012, February 14). In Acronym Geek. Retrieved 11:31, February 14, 2012, from http://www.acronymgeek.com/CRN |
| MLA | "CRN." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CRN>. |
| MHRA | 'CRN', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CRN> [accessed 14 February 2012] |
| Chicago | "CRN", http://www.acronymgeek.com/CRN (accessed February 14, 2012). |
| CBE/CSE | CRN [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CRN. |
| Bluebook | CRN, http://www.acronymgeek.com/CRN (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CRN, http://www.acronymgeek.com/CRN (optional description here) (as of Feb. 14, 2012, 11:31). |
| AMA | CRN. Acronym Geek. February 14, 2012, 11:31. Available at: http://www.acronymgeek.com/CRN. Accessed February 14, 2012, 11:31. |