| APA | HPFQ. (2012, February 16). In Acronym Geek. Retrieved 01:46, February 16, 2012, from http://www.acronymgeek.com/HPFQ |
| MLA | "HPFQ." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HPFQ>. |
| MHRA | 'HPFQ', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HPFQ> [accessed 16 February 2012] |
| Chicago | "HPFQ", http://www.acronymgeek.com/HPFQ (accessed February 16, 2012). |
| CBE/CSE | HPFQ [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HPFQ. |
| Bluebook | HPFQ, http://www.acronymgeek.com/HPFQ (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HPFQ, http://www.acronymgeek.com/HPFQ (optional description here) (as of Feb. 16, 2012, 01:46). |
| AMA | HPFQ. Acronym Geek. February 16, 2012, 01:46. Available at: http://www.acronymgeek.com/HPFQ. Accessed February 16, 2012, 01:46. |