| APA | HPBF. (2012, February 15). In Acronym Geek. Retrieved 13:40, February 15, 2012, from http://www.acronymgeek.com/HPBF |
| MLA | "HPBF." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HPBF>. |
| MHRA | 'HPBF', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HPBF> [accessed 15 February 2012] |
| Chicago | "HPBF", http://www.acronymgeek.com/HPBF (accessed February 15, 2012). |
| CBE/CSE | HPBF [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HPBF. |
| Bluebook | HPBF, http://www.acronymgeek.com/HPBF (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HPBF, http://www.acronymgeek.com/HPBF (optional description here) (as of Feb. 15, 2012, 13:40). |
| AMA | HPBF. Acronym Geek. February 15, 2012, 13:40. Available at: http://www.acronymgeek.com/HPBF. Accessed February 15, 2012, 13:40. |