| APA | HTPG. (2012, February 17). In Acronym Geek. Retrieved 03:40, February 17, 2012, from http://www.acronymgeek.com/HTPG |
| MLA | "HTPG." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HTPG>. |
| MHRA | 'HTPG', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HTPG> [accessed 17 February 2012] |
| Chicago | "HTPG", http://www.acronymgeek.com/HTPG (accessed February 17, 2012). |
| CBE/CSE | HTPG [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HTPG. |
| Bluebook | HTPG, http://www.acronymgeek.com/HTPG (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTPG, http://www.acronymgeek.com/HTPG (optional description here) (as of Feb. 17, 2012, 03:40). |
| AMA | HTPG. Acronym Geek. February 17, 2012, 03:40. Available at: http://www.acronymgeek.com/HTPG. Accessed February 17, 2012, 03:40. |