| APA | EFIW. (2012, February 14). In Acronym Geek. Retrieved 17:52, February 14, 2012, from http://www.acronymgeek.com/EFIW |
| MLA | "EFIW." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/EFIW>. |
| MHRA | 'EFIW', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/EFIW> [accessed 14 February 2012] |
| Chicago | "EFIW", http://www.acronymgeek.com/EFIW (accessed February 14, 2012). |
| CBE/CSE | EFIW [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/EFIW. |
| Bluebook | EFIW, http://www.acronymgeek.com/EFIW (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EFIW, http://www.acronymgeek.com/EFIW (optional description here) (as of Feb. 14, 2012, 17:52). |
| AMA | EFIW. Acronym Geek. February 14, 2012, 17:52. Available at: http://www.acronymgeek.com/EFIW. Accessed February 14, 2012, 17:52. |