| APA | 3U. (2012, February 11). In Acronym Geek. Retrieved 21:56, February 11, 2012, from http://www.acronymgeek.com/3U |
| MLA | "3U." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/3U>. |
| MHRA | '3U', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/3U> [accessed 11 February 2012] |
| Chicago | "3U", http://www.acronymgeek.com/3U (accessed February 11, 2012). |
| CBE/CSE | 3U [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/3U. |
| Bluebook | 3U, http://www.acronymgeek.com/3U (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 3U, http://www.acronymgeek.com/3U (optional description here) (as of Feb. 11, 2012, 21:56). |
| AMA | 3U. Acronym Geek. February 11, 2012, 21:56. Available at: http://www.acronymgeek.com/3U. Accessed February 11, 2012, 21:56. |