| APA | NTUA. (2012, February 15). In Acronym Geek. Retrieved 13:06, February 15, 2012, from http://www.acronymgeek.com/NTUA |
| MLA | "NTUA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NTUA>. |
| MHRA | 'NTUA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NTUA> [accessed 15 February 2012] |
| Chicago | "NTUA", http://www.acronymgeek.com/NTUA (accessed February 15, 2012). |
| CBE/CSE | NTUA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NTUA. |
| Bluebook | NTUA, http://www.acronymgeek.com/NTUA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NTUA, http://www.acronymgeek.com/NTUA (optional description here) (as of Feb. 15, 2012, 13:06). |
| AMA | NTUA. Acronym Geek. February 15, 2012, 13:06. Available at: http://www.acronymgeek.com/NTUA. Accessed February 15, 2012, 13:06. |