| APA | CPNL. (2012, February 12). In Acronym Geek. Retrieved 01:06, February 12, 2012, from http://www.acronymgeek.com/CPNL |
| MLA | "CPNL." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/CPNL>. |
| MHRA | 'CPNL', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/CPNL> [accessed 12 February 2012] |
| Chicago | "CPNL", http://www.acronymgeek.com/CPNL (accessed February 12, 2012). |
| CBE/CSE | CPNL [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/CPNL. |
| Bluebook | CPNL, http://www.acronymgeek.com/CPNL (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPNL, http://www.acronymgeek.com/CPNL (optional description here) (as of Feb. 12, 2012, 01:06). |
| AMA | CPNL. Acronym Geek. February 12, 2012, 01:06. Available at: http://www.acronymgeek.com/CPNL. Accessed February 12, 2012, 01:06. |