| APA | EU. (2012, February 9). In Acronym Geek. Retrieved 16:56, February 9, 2012, from http://www.acronymgeek.com/EU |
| MLA | "EU." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/EU>. |
| MHRA | 'EU', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/EU> [accessed 9 February 2012] |
| Chicago | "EU", http://www.acronymgeek.com/EU (accessed February 9, 2012). |
| CBE/CSE | EU [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/EU. |
| Bluebook | EU, http://www.acronymgeek.com/EU (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EU, http://www.acronymgeek.com/EU (optional description here) (as of Feb. 9, 2012, 16:56). |
| AMA | EU. Acronym Geek. February 9, 2012, 16:56. Available at: http://www.acronymgeek.com/EU. Accessed February 9, 2012, 16:56. |