| APA | EFZ. (2012, February 14). In Acronym Geek. Retrieved 02:30, February 14, 2012, from http://www.acronymgeek.com/EFZ |
| MLA | "EFZ." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/EFZ>. |
| MHRA | 'EFZ', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/EFZ> [accessed 14 February 2012] |
| Chicago | "EFZ", http://www.acronymgeek.com/EFZ (accessed February 14, 2012). |
| CBE/CSE | EFZ [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/EFZ. |
| Bluebook | EFZ, http://www.acronymgeek.com/EFZ (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EFZ, http://www.acronymgeek.com/EFZ (optional description here) (as of Feb. 14, 2012, 02:30). |
| AMA | EFZ. Acronym Geek. February 14, 2012, 02:30. Available at: http://www.acronymgeek.com/EFZ. Accessed February 14, 2012, 02:30. |