| APA | PTCZ. (2012, February 17). In Acronym Geek. Retrieved 05:43, February 17, 2012, from http://www.acronymgeek.com/PTCZ |
| MLA | "PTCZ." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PTCZ>. |
| MHRA | 'PTCZ', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PTCZ> [accessed 17 February 2012] |
| Chicago | "PTCZ", http://www.acronymgeek.com/PTCZ (accessed February 17, 2012). |
| CBE/CSE | PTCZ [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PTCZ. |
| Bluebook | PTCZ, http://www.acronymgeek.com/PTCZ (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTCZ, http://www.acronymgeek.com/PTCZ (optional description here) (as of Feb. 17, 2012, 05:43). |
| AMA | PTCZ. Acronym Geek. February 17, 2012, 05:43. Available at: http://www.acronymgeek.com/PTCZ. Accessed February 17, 2012, 05:43. |