| APA | HOFO. (2012, February 15). In Acronym Geek. Retrieved 11:53, February 15, 2012, from http://www.acronymgeek.com/HOFO |
| MLA | "HOFO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HOFO>. |
| MHRA | 'HOFO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HOFO> [accessed 15 February 2012] |
| Chicago | "HOFO", http://www.acronymgeek.com/HOFO (accessed February 15, 2012). |
| CBE/CSE | HOFO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HOFO. |
| Bluebook | HOFO, http://www.acronymgeek.com/HOFO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HOFO, http://www.acronymgeek.com/HOFO (optional description here) (as of Feb. 15, 2012, 11:53). |
| AMA | HOFO. Acronym Geek. February 15, 2012, 11:53. Available at: http://www.acronymgeek.com/HOFO. Accessed February 15, 2012, 11:53. |