| APA | HPBA. (2012, February 15). In Acronym Geek. Retrieved 06:01, February 15, 2012, from http://www.acronymgeek.com/HPBA |
| MLA | "HPBA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HPBA>. |
| MHRA | 'HPBA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HPBA> [accessed 15 February 2012] |
| Chicago | "HPBA", http://www.acronymgeek.com/HPBA (accessed February 15, 2012). |
| CBE/CSE | HPBA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HPBA. |
| Bluebook | HPBA, http://www.acronymgeek.com/HPBA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HPBA, http://www.acronymgeek.com/HPBA (optional description here) (as of Feb. 15, 2012, 06:01). |
| AMA | HPBA. Acronym Geek. February 15, 2012, 06:01. Available at: http://www.acronymgeek.com/HPBA. Accessed February 15, 2012, 06:01. |