| APA | HPBE. (2012, February 16). In Acronym Geek. Retrieved 01:29, February 16, 2012, from http://www.acronymgeek.com/HPBE |
| MLA | "HPBE." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HPBE>. |
| MHRA | 'HPBE', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HPBE> [accessed 16 February 2012] |
| Chicago | "HPBE", http://www.acronymgeek.com/HPBE (accessed February 16, 2012). |
| CBE/CSE | HPBE [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HPBE. |
| Bluebook | HPBE, http://www.acronymgeek.com/HPBE (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HPBE, http://www.acronymgeek.com/HPBE (optional description here) (as of Feb. 16, 2012, 01:29). |
| AMA | HPBE. Acronym Geek. February 16, 2012, 01:29. Available at: http://www.acronymgeek.com/HPBE. Accessed February 16, 2012, 01:29. |