| APA | HEFP. (2012, February 14). In Acronym Geek. Retrieved 00:44, February 14, 2012, from http://www.acronymgeek.com/HEFP |
| MLA | "HEFP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HEFP>. |
| MHRA | 'HEFP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HEFP> [accessed 14 February 2012] |
| Chicago | "HEFP", http://www.acronymgeek.com/HEFP (accessed February 14, 2012). |
| CBE/CSE | HEFP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HEFP. |
| Bluebook | HEFP, http://www.acronymgeek.com/HEFP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HEFP, http://www.acronymgeek.com/HEFP (optional description here) (as of Feb. 14, 2012, 00:44). |
| AMA | HEFP. Acronym Geek. February 14, 2012, 00:44. Available at: http://www.acronymgeek.com/HEFP. Accessed February 14, 2012, 00:44. |