| APA | HAFY. (2012, February 16). In Acronym Geek. Retrieved 21:44, February 16, 2012, from http://www.acronymgeek.com/HAFY |
| MLA | "HAFY." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HAFY>. |
| MHRA | 'HAFY', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HAFY> [accessed 16 February 2012] |
| Chicago | "HAFY", http://www.acronymgeek.com/HAFY (accessed February 16, 2012). |
| CBE/CSE | HAFY [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HAFY. |
| Bluebook | HAFY, http://www.acronymgeek.com/HAFY (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HAFY, http://www.acronymgeek.com/HAFY (optional description here) (as of Feb. 16, 2012, 21:44). |
| AMA | HAFY. Acronym Geek. February 16, 2012, 21:44. Available at: http://www.acronymgeek.com/HAFY. Accessed February 16, 2012, 21:44. |