| APA | HTF. (2012, February 9). In Acronym Geek. Retrieved 18:25, February 9, 2012, from http://www.acronymgeek.com/HTF |
| MLA | "HTF." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/HTF>. |
| MHRA | 'HTF', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/HTF> [accessed 9 February 2012] |
| Chicago | "HTF", http://www.acronymgeek.com/HTF (accessed February 9, 2012). |
| CBE/CSE | HTF [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/HTF. |
| Bluebook | HTF, http://www.acronymgeek.com/HTF (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTF, http://www.acronymgeek.com/HTF (optional description here) (as of Feb. 9, 2012, 18:25). |
| AMA | HTF. Acronym Geek. February 9, 2012, 18:25. Available at: http://www.acronymgeek.com/HTF. Accessed February 9, 2012, 18:25. |