| APA | EPTD. (2012, February 15). In Acronym Geek. Retrieved 11:51, February 15, 2012, from http://www.acronymgeek.com/EPTD |
| MLA | "EPTD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/EPTD>. |
| MHRA | 'EPTD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/EPTD> [accessed 15 February 2012] |
| Chicago | "EPTD", http://www.acronymgeek.com/EPTD (accessed February 15, 2012). |
| CBE/CSE | EPTD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/EPTD. |
| Bluebook | EPTD, http://www.acronymgeek.com/EPTD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EPTD, http://www.acronymgeek.com/EPTD (optional description here) (as of Feb. 15, 2012, 11:51). |
| AMA | EPTD. Acronym Geek. February 15, 2012, 11:51. Available at: http://www.acronymgeek.com/EPTD. Accessed February 15, 2012, 11:51. |