| APA | CNOP. (2012, February 10). In Acronym Geek. Retrieved 07:08, February 10, 2012, from http://www.acronymgeek.com/CNOP |
| MLA | "CNOP." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/CNOP>. |
| MHRA | 'CNOP', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/CNOP> [accessed 10 February 2012] |
| Chicago | "CNOP", http://www.acronymgeek.com/CNOP (accessed February 10, 2012). |
| CBE/CSE | CNOP [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/CNOP. |
| Bluebook | CNOP, http://www.acronymgeek.com/CNOP (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CNOP, http://www.acronymgeek.com/CNOP (optional description here) (as of Feb. 10, 2012, 07:08). |
| AMA | CNOP. Acronym Geek. February 10, 2012, 07:08. Available at: http://www.acronymgeek.com/CNOP. Accessed February 10, 2012, 07:08. |