| APA | ETYN. (2012, February 16). In Acronym Geek. Retrieved 06:57, February 16, 2012, from http://www.acronymgeek.com/ETYN |
| MLA | "ETYN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ETYN>. |
| MHRA | 'ETYN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ETYN> [accessed 16 February 2012] |
| Chicago | "ETYN", http://www.acronymgeek.com/ETYN (accessed February 16, 2012). |
| CBE/CSE | ETYN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ETYN. |
| Bluebook | ETYN, http://www.acronymgeek.com/ETYN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETYN, http://www.acronymgeek.com/ETYN (optional description here) (as of Feb. 16, 2012, 06:57). |
| AMA | ETYN. Acronym Geek. February 16, 2012, 06:57. Available at: http://www.acronymgeek.com/ETYN. Accessed February 16, 2012, 06:57. |