| APA | BPK. (2012, February 10). In Acronym Geek. Retrieved 17:09, February 10, 2012, from http://www.acronymgeek.com/BPK |
| MLA | "BPK." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/BPK>. |
| MHRA | 'BPK', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/BPK> [accessed 10 February 2012] |
| Chicago | "BPK", http://www.acronymgeek.com/BPK (accessed February 10, 2012). |
| CBE/CSE | BPK [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/BPK. |
| Bluebook | BPK, http://www.acronymgeek.com/BPK (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BPK, http://www.acronymgeek.com/BPK (optional description here) (as of Feb. 10, 2012, 17:09). |
| AMA | BPK. Acronym Geek. February 10, 2012, 17:09. Available at: http://www.acronymgeek.com/BPK. Accessed February 10, 2012, 17:09. |