| APA | CPN. (2012, February 9). In Acronym Geek. Retrieved 20:39, February 9, 2012, from http://www.acronymgeek.com/CPN |
| MLA | "CPN." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/CPN>. |
| MHRA | 'CPN', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/CPN> [accessed 9 February 2012] |
| Chicago | "CPN", http://www.acronymgeek.com/CPN (accessed February 9, 2012). |
| CBE/CSE | CPN [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/CPN. |
| Bluebook | CPN, http://www.acronymgeek.com/CPN (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPN, http://www.acronymgeek.com/CPN (optional description here) (as of Feb. 9, 2012, 20:39). |
| AMA | CPN. Acronym Geek. February 9, 2012, 20:39. Available at: http://www.acronymgeek.com/CPN. Accessed February 9, 2012, 20:39. |