| APA | CPUS. (2012, February 15). In Acronym Geek. Retrieved 21:16, February 15, 2012, from http://www.acronymgeek.com/CPUS |
| MLA | "CPUS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CPUS>. |
| MHRA | 'CPUS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CPUS> [accessed 15 February 2012] |
| Chicago | "CPUS", http://www.acronymgeek.com/CPUS (accessed February 15, 2012). |
| CBE/CSE | CPUS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CPUS. |
| Bluebook | CPUS, http://www.acronymgeek.com/CPUS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CPUS, http://www.acronymgeek.com/CPUS (optional description here) (as of Feb. 15, 2012, 21:16). |
| AMA | CPUS. Acronym Geek. February 15, 2012, 21:16. Available at: http://www.acronymgeek.com/CPUS. Accessed February 15, 2012, 21:16. |