| APA | CZOP. (2012, February 16). In Acronym Geek. Retrieved 23:20, February 16, 2012, from http://www.acronymgeek.com/CZOP |
| MLA | "CZOP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/CZOP>. |
| MHRA | 'CZOP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/CZOP> [accessed 16 February 2012] |
| Chicago | "CZOP", http://www.acronymgeek.com/CZOP (accessed February 16, 2012). |
| CBE/CSE | CZOP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/CZOP. |
| Bluebook | CZOP, http://www.acronymgeek.com/CZOP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CZOP, http://www.acronymgeek.com/CZOP (optional description here) (as of Feb. 16, 2012, 23:20). |
| AMA | CZOP. Acronym Geek. February 16, 2012, 23:20. Available at: http://www.acronymgeek.com/CZOP. Accessed February 16, 2012, 23:20. |