| APA | CPUN. (2012, February 16). In Acronym Geek. Retrieved 00:15, February 16, 2012, from http://www.acronymgeek.com/CPUN |
| MLA | "CPUN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/CPUN>. |
| MHRA | 'CPUN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/CPUN> [accessed 16 February 2012] |
| Chicago | "CPUN", http://www.acronymgeek.com/CPUN (accessed February 16, 2012). |
| CBE/CSE | CPUN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/CPUN. |
| Bluebook | CPUN, http://www.acronymgeek.com/CPUN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPUN, http://www.acronymgeek.com/CPUN (optional description here) (as of Feb. 16, 2012, 00:15). |
| AMA | CPUN. Acronym Geek. February 16, 2012, 00:15. Available at: http://www.acronymgeek.com/CPUN. Accessed February 16, 2012, 00:15. |