| APA | PTHP. (2012, February 17). In Acronym Geek. Retrieved 00:16, February 17, 2012, from http://www.acronymgeek.com/PTHP |
| MLA | "PTHP." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PTHP>. |
| MHRA | 'PTHP', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PTHP> [accessed 17 February 2012] |
| Chicago | "PTHP", http://www.acronymgeek.com/PTHP (accessed February 17, 2012). |
| CBE/CSE | PTHP [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PTHP. |
| Bluebook | PTHP, http://www.acronymgeek.com/PTHP (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTHP, http://www.acronymgeek.com/PTHP (optional description here) (as of Feb. 17, 2012, 00:16). |
| AMA | PTHP. Acronym Geek. February 17, 2012, 00:16. Available at: http://www.acronymgeek.com/PTHP. Accessed February 17, 2012, 00:16. |