| APA | HTPE. (2012, February 11). In Acronym Geek. Retrieved 22:14, February 11, 2012, from http://www.acronymgeek.com/HTPE |
| MLA | "HTPE." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/HTPE>. |
| MHRA | 'HTPE', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/HTPE> [accessed 11 February 2012] |
| Chicago | "HTPE", http://www.acronymgeek.com/HTPE (accessed February 11, 2012). |
| CBE/CSE | HTPE [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/HTPE. |
| Bluebook | HTPE, http://www.acronymgeek.com/HTPE (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTPE, http://www.acronymgeek.com/HTPE (optional description here) (as of Feb. 11, 2012, 22:14). |
| AMA | HTPE. Acronym Geek. February 11, 2012, 22:14. Available at: http://www.acronymgeek.com/HTPE. Accessed February 11, 2012, 22:14. |