| APA | HEFG. (2012, February 14). In Acronym Geek. Retrieved 21:20, February 14, 2012, from http://www.acronymgeek.com/HEFG |
| MLA | "HEFG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HEFG>. |
| MHRA | 'HEFG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HEFG> [accessed 14 February 2012] |
| Chicago | "HEFG", http://www.acronymgeek.com/HEFG (accessed February 14, 2012). |
| CBE/CSE | HEFG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HEFG. |
| Bluebook | HEFG, http://www.acronymgeek.com/HEFG (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HEFG, http://www.acronymgeek.com/HEFG (optional description here) (as of Feb. 14, 2012, 21:20). |
| AMA | HEFG. Acronym Geek. February 14, 2012, 21:20. Available at: http://www.acronymgeek.com/HEFG. Accessed February 14, 2012, 21:20. |