| APA | EFWO. (2012, February 16). In Acronym Geek. Retrieved 17:35, February 16, 2012, from http://www.acronymgeek.com/EFWO |
| MLA | "EFWO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/EFWO>. |
| MHRA | 'EFWO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/EFWO> [accessed 16 February 2012] |
| Chicago | "EFWO", http://www.acronymgeek.com/EFWO (accessed February 16, 2012). |
| CBE/CSE | EFWO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/EFWO. |
| Bluebook | EFWO, http://www.acronymgeek.com/EFWO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EFWO, http://www.acronymgeek.com/EFWO (optional description here) (as of Feb. 16, 2012, 17:35). |
| AMA | EFWO. Acronym Geek. February 16, 2012, 17:35. Available at: http://www.acronymgeek.com/EFWO. Accessed February 16, 2012, 17:35. |