| APA | CPYY. (2012, February 14). In Acronym Geek. Retrieved 08:13, February 14, 2012, from http://www.acronymgeek.com/CPYY |
| MLA | "CPYY." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CPYY>. |
| MHRA | 'CPYY', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CPYY> [accessed 14 February 2012] |
| Chicago | "CPYY", http://www.acronymgeek.com/CPYY (accessed February 14, 2012). |
| CBE/CSE | CPYY [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CPYY. |
| Bluebook | CPYY, http://www.acronymgeek.com/CPYY (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPYY, http://www.acronymgeek.com/CPYY (optional description here) (as of Feb. 14, 2012, 08:13). |
| AMA | CPYY. Acronym Geek. February 14, 2012, 08:13. Available at: http://www.acronymgeek.com/CPYY. Accessed February 14, 2012, 08:13. |