| APA | HBPA. (2012, February 15). In Acronym Geek. Retrieved 00:30, February 15, 2012, from http://www.acronymgeek.com/HBPA |
| MLA | "HBPA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HBPA>. |
| MHRA | 'HBPA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HBPA> [accessed 15 February 2012] |
| Chicago | "HBPA", http://www.acronymgeek.com/HBPA (accessed February 15, 2012). |
| CBE/CSE | HBPA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HBPA. |
| Bluebook | HBPA, http://www.acronymgeek.com/HBPA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HBPA, http://www.acronymgeek.com/HBPA (optional description here) (as of Feb. 15, 2012, 00:30). |
| AMA | HBPA. Acronym Geek. February 15, 2012, 00:30. Available at: http://www.acronymgeek.com/HBPA. Accessed February 15, 2012, 00:30. |