| APA | HPAG. (2012, February 17). In Acronym Geek. Retrieved 06:33, February 17, 2012, from http://www.acronymgeek.com/HPAG |
| MLA | "HPAG." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HPAG>. |
| MHRA | 'HPAG', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HPAG> [accessed 17 February 2012] |
| Chicago | "HPAG", http://www.acronymgeek.com/HPAG (accessed February 17, 2012). |
| CBE/CSE | HPAG [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HPAG. |
| Bluebook | HPAG, http://www.acronymgeek.com/HPAG (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HPAG, http://www.acronymgeek.com/HPAG (optional description here) (as of Feb. 17, 2012, 06:33). |
| AMA | HPAG. Acronym Geek. February 17, 2012, 06:33. Available at: http://www.acronymgeek.com/HPAG. Accessed February 17, 2012, 06:33. |