| APA | HBFL. (2012, February 16). In Acronym Geek. Retrieved 04:11, February 16, 2012, from http://www.acronymgeek.com/HBFL |
| MLA | "HBFL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HBFL>. |
| MHRA | 'HBFL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HBFL> [accessed 16 February 2012] |
| Chicago | "HBFL", http://www.acronymgeek.com/HBFL (accessed February 16, 2012). |
| CBE/CSE | HBFL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HBFL. |
| Bluebook | HBFL, http://www.acronymgeek.com/HBFL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HBFL, http://www.acronymgeek.com/HBFL (optional description here) (as of Feb. 16, 2012, 04:11). |
| AMA | HBFL. Acronym Geek. February 16, 2012, 04:11. Available at: http://www.acronymgeek.com/HBFL. Accessed February 16, 2012, 04:11. |