| APA | CPYI. (2012, February 14). In Acronym Geek. Retrieved 21:52, February 14, 2012, from http://www.acronymgeek.com/CPYI |
| MLA | "CPYI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CPYI>. |
| MHRA | 'CPYI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CPYI> [accessed 14 February 2012] |
| Chicago | "CPYI", http://www.acronymgeek.com/CPYI (accessed February 14, 2012). |
| CBE/CSE | CPYI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CPYI. |
| Bluebook | CPYI, http://www.acronymgeek.com/CPYI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPYI, http://www.acronymgeek.com/CPYI (optional description here) (as of Feb. 14, 2012, 21:52). |
| AMA | CPYI. Acronym Geek. February 14, 2012, 21:52. Available at: http://www.acronymgeek.com/CPYI. Accessed February 14, 2012, 21:52. |