| APA | ETYA. (2012, February 11). In Acronym Geek. Retrieved 20:47, February 11, 2012, from http://www.acronymgeek.com/ETYA |
| MLA | "ETYA." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/ETYA>. |
| MHRA | 'ETYA', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/ETYA> [accessed 11 February 2012] |
| Chicago | "ETYA", http://www.acronymgeek.com/ETYA (accessed February 11, 2012). |
| CBE/CSE | ETYA [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/ETYA. |
| Bluebook | ETYA, http://www.acronymgeek.com/ETYA (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETYA, http://www.acronymgeek.com/ETYA (optional description here) (as of Feb. 11, 2012, 20:47). |
| AMA | ETYA. Acronym Geek. February 11, 2012, 20:47. Available at: http://www.acronymgeek.com/ETYA. Accessed February 11, 2012, 20:47. |