| APA | HFFF. (2012, February 15). In Acronym Geek. Retrieved 11:08, February 15, 2012, from http://www.acronymgeek.com/HFFF |
| MLA | "HFFF." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HFFF>. |
| MHRA | 'HFFF', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HFFF> [accessed 15 February 2012] |
| Chicago | "HFFF", http://www.acronymgeek.com/HFFF (accessed February 15, 2012). |
| CBE/CSE | HFFF [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HFFF. |
| Bluebook | HFFF, http://www.acronymgeek.com/HFFF (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HFFF, http://www.acronymgeek.com/HFFF (optional description here) (as of Feb. 15, 2012, 11:08). |
| AMA | HFFF. Acronym Geek. February 15, 2012, 11:08. Available at: http://www.acronymgeek.com/HFFF. Accessed February 15, 2012, 11:08. |