| APA | HDPT. (2012, February 16). In Acronym Geek. Retrieved 20:56, February 16, 2012, from http://www.acronymgeek.com/HDPT |
| MLA | "HDPT." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HDPT>. |
| MHRA | 'HDPT', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HDPT> [accessed 16 February 2012] |
| Chicago | "HDPT", http://www.acronymgeek.com/HDPT (accessed February 16, 2012). |
| CBE/CSE | HDPT [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HDPT. |
| Bluebook | HDPT, http://www.acronymgeek.com/HDPT (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HDPT, http://www.acronymgeek.com/HDPT (optional description here) (as of Feb. 16, 2012, 20:56). |
| AMA | HDPT. Acronym Geek. February 16, 2012, 20:56. Available at: http://www.acronymgeek.com/HDPT. Accessed February 16, 2012, 20:56. |