| APA | CPUL. (2012, February 15). In Acronym Geek. Retrieved 20:29, February 15, 2012, from http://www.acronymgeek.com/CPUL |
| MLA | "CPUL." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CPUL>. |
| MHRA | 'CPUL', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CPUL> [accessed 15 February 2012] |
| Chicago | "CPUL", http://www.acronymgeek.com/CPUL (accessed February 15, 2012). |
| CBE/CSE | CPUL [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CPUL. |
| Bluebook | CPUL, http://www.acronymgeek.com/CPUL (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPUL, http://www.acronymgeek.com/CPUL (optional description here) (as of Feb. 15, 2012, 20:29). |
| AMA | CPUL. Acronym Geek. February 15, 2012, 20:29. Available at: http://www.acronymgeek.com/CPUL. Accessed February 15, 2012, 20:29. |