| APA | PTHM. (2012, February 14). In Acronym Geek. Retrieved 21:55, February 14, 2012, from http://www.acronymgeek.com/PTHM |
| MLA | "PTHM." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PTHM>. |
| MHRA | 'PTHM', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PTHM> [accessed 14 February 2012] |
| Chicago | "PTHM", http://www.acronymgeek.com/PTHM (accessed February 14, 2012). |
| CBE/CSE | PTHM [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PTHM. |
| Bluebook | PTHM, http://www.acronymgeek.com/PTHM (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTHM, http://www.acronymgeek.com/PTHM (optional description here) (as of Feb. 14, 2012, 21:55). |
| AMA | PTHM. Acronym Geek. February 14, 2012, 21:55. Available at: http://www.acronymgeek.com/PTHM. Accessed February 14, 2012, 21:55. |