| APA | PTH. (2012, February 8). In Acronym Geek. Retrieved 19:50, February 8, 2012, from http://www.acronymgeek.com/PTH |
| MLA | "PTH." Acronym Geek. (2012). Acronym Geek. 8 Feb 2012 <http://www.acronymgeek.com/PTH>. |
| MHRA | 'PTH', Acronym Geek, 8 February 2012, <http://www.acronymgeek.com/PTH> [accessed 8 February 2012] |
| Chicago | "PTH", http://www.acronymgeek.com/PTH (accessed February 8, 2012). |
| CBE/CSE | PTH [Internet]. Acronym Geek; 2012 Feb 8 [cited 2012 Feb 8]. Available from: http://www.acronymgeek.com/PTH. |
| Bluebook | PTH, http://www.acronymgeek.com/PTH (last visited February 8, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTH, http://www.acronymgeek.com/PTH (optional description here) (as of Feb. 8, 2012, 19:50). |
| AMA | PTH. Acronym Geek. February 8, 2012, 19:50. Available at: http://www.acronymgeek.com/PTH. Accessed February 8, 2012, 19:50. |