| APA | EPTK. (2012, February 16). In Acronym Geek. Retrieved 06:37, February 16, 2012, from http://www.acronymgeek.com/EPTK |
| MLA | "EPTK." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/EPTK>. |
| MHRA | 'EPTK', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/EPTK> [accessed 16 February 2012] |
| Chicago | "EPTK", http://www.acronymgeek.com/EPTK (accessed February 16, 2012). |
| CBE/CSE | EPTK [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/EPTK. |
| Bluebook | EPTK, http://www.acronymgeek.com/EPTK (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EPTK, http://www.acronymgeek.com/EPTK (optional description here) (as of Feb. 16, 2012, 06:37). |
| AMA | EPTK. Acronym Geek. February 16, 2012, 06:37. Available at: http://www.acronymgeek.com/EPTK. Accessed February 16, 2012, 06:37. |