| APA | PHBT. (2012, February 15). In Acronym Geek. Retrieved 06:20, February 15, 2012, from http://www.acronymgeek.com/PHBT |
| MLA | "PHBT." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PHBT>. |
| MHRA | 'PHBT', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PHBT> [accessed 15 February 2012] |
| Chicago | "PHBT", http://www.acronymgeek.com/PHBT (accessed February 15, 2012). |
| CBE/CSE | PHBT [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PHBT. |
| Bluebook | PHBT, http://www.acronymgeek.com/PHBT (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PHBT, http://www.acronymgeek.com/PHBT (optional description here) (as of Feb. 15, 2012, 06:20). |
| AMA | PHBT. Acronym Geek. February 15, 2012, 06:20. Available at: http://www.acronymgeek.com/PHBT. Accessed February 15, 2012, 06:20. |