| APA | ETKZ. (2012, February 16). In Acronym Geek. Retrieved 16:26, February 16, 2012, from http://www.acronymgeek.com/ETKZ |
| MLA | "ETKZ." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ETKZ>. |
| MHRA | 'ETKZ', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ETKZ> [accessed 16 February 2012] |
| Chicago | "ETKZ", http://www.acronymgeek.com/ETKZ (accessed February 16, 2012). |
| CBE/CSE | ETKZ [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ETKZ. |
| Bluebook | ETKZ, http://www.acronymgeek.com/ETKZ (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETKZ, http://www.acronymgeek.com/ETKZ (optional description here) (as of Feb. 16, 2012, 16:26). |
| AMA | ETKZ. Acronym Geek. February 16, 2012, 16:26. Available at: http://www.acronymgeek.com/ETKZ. Accessed February 16, 2012, 16:26. |