| APA | BOP. (2012, February 14). In Acronym Geek. Retrieved 04:04, February 14, 2012, from http://www.acronymgeek.com/BOP |
| MLA | "BOP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/BOP>. |
| MHRA | 'BOP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/BOP> [accessed 14 February 2012] |
| Chicago | "BOP", http://www.acronymgeek.com/BOP (accessed February 14, 2012). |
| CBE/CSE | BOP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/BOP. |
| Bluebook | BOP, http://www.acronymgeek.com/BOP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BOP, http://www.acronymgeek.com/BOP (optional description here) (as of Feb. 14, 2012, 04:04). |
| AMA | BOP. Acronym Geek. February 14, 2012, 04:04. Available at: http://www.acronymgeek.com/BOP. Accessed February 14, 2012, 04:04. |