| APA | B4S. (2012, February 14). In Acronym Geek. Retrieved 12:11, February 14, 2012, from http://www.acronymgeek.com/B4S |
| MLA | "B4S." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/B4S>. |
| MHRA | 'B4S', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/B4S> [accessed 14 February 2012] |
| Chicago | "B4S", http://www.acronymgeek.com/B4S (accessed February 14, 2012). |
| CBE/CSE | B4S [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/B4S. |
| Bluebook | B4S, http://www.acronymgeek.com/B4S (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, B4S, http://www.acronymgeek.com/B4S (optional description here) (as of Feb. 14, 2012, 12:11). |
| AMA | B4S. Acronym Geek. February 14, 2012, 12:11. Available at: http://www.acronymgeek.com/B4S. Accessed February 14, 2012, 12:11. |