| APA | HBSU. (2012, February 14). In Acronym Geek. Retrieved 15:40, February 14, 2012, from http://www.acronymgeek.com/HBSU |
| MLA | "HBSU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HBSU>. |
| MHRA | 'HBSU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HBSU> [accessed 14 February 2012] |
| Chicago | "HBSU", http://www.acronymgeek.com/HBSU (accessed February 14, 2012). |
| CBE/CSE | HBSU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HBSU. |
| Bluebook | HBSU, http://www.acronymgeek.com/HBSU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HBSU, http://www.acronymgeek.com/HBSU (optional description here) (as of Feb. 14, 2012, 15:40). |
| AMA | HBSU. Acronym Geek. February 14, 2012, 15:40. Available at: http://www.acronymgeek.com/HBSU. Accessed February 14, 2012, 15:40. |