| APA | HDP. (2012, February 14). In Acronym Geek. Retrieved 11:05, February 14, 2012, from http://www.acronymgeek.com/HDP |
| MLA | "HDP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HDP>. |
| MHRA | 'HDP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HDP> [accessed 14 February 2012] |
| Chicago | "HDP", http://www.acronymgeek.com/HDP (accessed February 14, 2012). |
| CBE/CSE | HDP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HDP. |
| Bluebook | HDP, http://www.acronymgeek.com/HDP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HDP, http://www.acronymgeek.com/HDP (optional description here) (as of Feb. 14, 2012, 11:05). |
| AMA | HDP. Acronym Geek. February 14, 2012, 11:05. Available at: http://www.acronymgeek.com/HDP. Accessed February 14, 2012, 11:05. |