| APA | PHBU. (2012, February 15). In Acronym Geek. Retrieved 06:41, February 15, 2012, from http://www.acronymgeek.com/PHBU |
| MLA | "PHBU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PHBU>. |
| MHRA | 'PHBU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PHBU> [accessed 15 February 2012] |
| Chicago | "PHBU", http://www.acronymgeek.com/PHBU (accessed February 15, 2012). |
| CBE/CSE | PHBU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PHBU. |
| Bluebook | PHBU, http://www.acronymgeek.com/PHBU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PHBU, http://www.acronymgeek.com/PHBU (optional description here) (as of Feb. 15, 2012, 06:41). |
| AMA | PHBU. Acronym Geek. February 15, 2012, 06:41. Available at: http://www.acronymgeek.com/PHBU. Accessed February 15, 2012, 06:41. |