| APA | PTCM. (2012, February 17). In Acronym Geek. Retrieved 07:12, February 17, 2012, from http://www.acronymgeek.com/PTCM |
| MLA | "PTCM." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PTCM>. |
| MHRA | 'PTCM', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PTCM> [accessed 17 February 2012] |
| Chicago | "PTCM", http://www.acronymgeek.com/PTCM (accessed February 17, 2012). |
| CBE/CSE | PTCM [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PTCM. |
| Bluebook | PTCM, http://www.acronymgeek.com/PTCM (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTCM, http://www.acronymgeek.com/PTCM (optional description here) (as of Feb. 17, 2012, 07:12). |
| AMA | PTCM. Acronym Geek. February 17, 2012, 07:12. Available at: http://www.acronymgeek.com/PTCM. Accessed February 17, 2012, 07:12. |