| APA | PBR. (2012, February 8). In Acronym Geek. Retrieved 11:27, February 8, 2012, from http://www.acronymgeek.com/PBR |
| MLA | "PBR." Acronym Geek. (2012). Acronym Geek. 8 Feb 2012 <http://www.acronymgeek.com/PBR>. |
| MHRA | 'PBR', Acronym Geek, 8 February 2012, <http://www.acronymgeek.com/PBR> [accessed 8 February 2012] |
| Chicago | "PBR", http://www.acronymgeek.com/PBR (accessed February 8, 2012). |
| CBE/CSE | PBR [Internet]. Acronym Geek; 2012 Feb 8 [cited 2012 Feb 8]. Available from: http://www.acronymgeek.com/PBR. |
| Bluebook | PBR, http://www.acronymgeek.com/PBR (last visited February 8, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PBR, http://www.acronymgeek.com/PBR (optional description here) (as of Feb. 8, 2012, 11:27). |
| AMA | PBR. Acronym Geek. February 8, 2012, 11:27. Available at: http://www.acronymgeek.com/PBR. Accessed February 8, 2012, 11:27. |