| APA | PTCU. (2012, February 16). In Acronym Geek. Retrieved 11:41, February 16, 2012, from http://www.acronymgeek.com/PTCU |
| MLA | "PTCU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PTCU>. |
| MHRA | 'PTCU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PTCU> [accessed 16 February 2012] |
| Chicago | "PTCU", http://www.acronymgeek.com/PTCU (accessed February 16, 2012). |
| CBE/CSE | PTCU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PTCU. |
| Bluebook | PTCU, http://www.acronymgeek.com/PTCU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTCU, http://www.acronymgeek.com/PTCU (optional description here) (as of Feb. 16, 2012, 11:41). |
| AMA | PTCU. Acronym Geek. February 16, 2012, 11:41. Available at: http://www.acronymgeek.com/PTCU. Accessed February 16, 2012, 11:41. |