| APA | CPZNO. (2012, February 11). In Acronym Geek. Retrieved 17:18, February 11, 2012, from http://www.acronymgeek.com/CPZNO |
| MLA | "CPZNO." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/CPZNO>. |
| MHRA | 'CPZNO', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/CPZNO> [accessed 11 February 2012] |
| Chicago | "CPZNO", http://www.acronymgeek.com/CPZNO (accessed February 11, 2012). |
| CBE/CSE | CPZNO [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/CPZNO. |
| Bluebook | CPZNO, http://www.acronymgeek.com/CPZNO (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPZNO, http://www.acronymgeek.com/CPZNO (optional description here) (as of Feb. 11, 2012, 17:18). |
| AMA | CPZNO. Acronym Geek. February 11, 2012, 17:18. Available at: http://www.acronymgeek.com/CPZNO. Accessed February 11, 2012, 17:18. |