| APA | PBLL. (2012, February 16). In Acronym Geek. Retrieved 10:12, February 16, 2012, from http://www.acronymgeek.com/PBLL |
| MLA | "PBLL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PBLL>. |
| MHRA | 'PBLL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PBLL> [accessed 16 February 2012] |
| Chicago | "PBLL", http://www.acronymgeek.com/PBLL (accessed February 16, 2012). |
| CBE/CSE | PBLL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PBLL. |
| Bluebook | PBLL, http://www.acronymgeek.com/PBLL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PBLL, http://www.acronymgeek.com/PBLL (optional description here) (as of Feb. 16, 2012, 10:12). |
| AMA | PBLL. Acronym Geek. February 16, 2012, 10:12. Available at: http://www.acronymgeek.com/PBLL. Accessed February 16, 2012, 10:12. |