| APA | CPDO. (2012, February 15). In Acronym Geek. Retrieved 20:52, February 15, 2012, from http://www.acronymgeek.com/CPDO |
| MLA | "CPDO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CPDO>. |
| MHRA | 'CPDO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CPDO> [accessed 15 February 2012] |
| Chicago | "CPDO", http://www.acronymgeek.com/CPDO (accessed February 15, 2012). |
| CBE/CSE | CPDO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CPDO. |
| Bluebook | CPDO, http://www.acronymgeek.com/CPDO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPDO, http://www.acronymgeek.com/CPDO (optional description here) (as of Feb. 15, 2012, 20:52). |
| AMA | CPDO. Acronym Geek. February 15, 2012, 20:52. Available at: http://www.acronymgeek.com/CPDO. Accessed February 15, 2012, 20:52. |