| APA | CPXE. (2012, February 12). In Acronym Geek. Retrieved 12:51, February 12, 2012, from http://www.acronymgeek.com/CPXE |
| MLA | "CPXE." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/CPXE>. |
| MHRA | 'CPXE', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/CPXE> [accessed 12 February 2012] |
| Chicago | "CPXE", http://www.acronymgeek.com/CPXE (accessed February 12, 2012). |
| CBE/CSE | CPXE [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/CPXE. |
| Bluebook | CPXE, http://www.acronymgeek.com/CPXE (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPXE, http://www.acronymgeek.com/CPXE (optional description here) (as of Feb. 12, 2012, 12:51). |
| AMA | CPXE. Acronym Geek. February 12, 2012, 12:51. Available at: http://www.acronymgeek.com/CPXE. Accessed February 12, 2012, 12:51. |