| APA | CPNIE. (2012, February 12). In Acronym Geek. Retrieved 10:46, February 12, 2012, from http://www.acronymgeek.com/CPNIE |
| MLA | "CPNIE." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/CPNIE>. |
| MHRA | 'CPNIE', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/CPNIE> [accessed 12 February 2012] |
| Chicago | "CPNIE", http://www.acronymgeek.com/CPNIE (accessed February 12, 2012). |
| CBE/CSE | CPNIE [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/CPNIE. |
| Bluebook | CPNIE, http://www.acronymgeek.com/CPNIE (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPNIE, http://www.acronymgeek.com/CPNIE (optional description here) (as of Feb. 12, 2012, 10:46). |
| AMA | CPNIE. Acronym Geek. February 12, 2012, 10:46. Available at: http://www.acronymgeek.com/CPNIE. Accessed February 12, 2012, 10:46. |