| APA | ETDR. (2012, February 15). In Acronym Geek. Retrieved 14:09, February 15, 2012, from http://www.acronymgeek.com/ETDR |
| MLA | "ETDR." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ETDR>. |
| MHRA | 'ETDR', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ETDR> [accessed 15 February 2012] |
| Chicago | "ETDR", http://www.acronymgeek.com/ETDR (accessed February 15, 2012). |
| CBE/CSE | ETDR [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ETDR. |
| Bluebook | ETDR, http://www.acronymgeek.com/ETDR (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETDR, http://www.acronymgeek.com/ETDR (optional description here) (as of Feb. 15, 2012, 14:09). |
| AMA | ETDR. Acronym Geek. February 15, 2012, 14:09. Available at: http://www.acronymgeek.com/ETDR. Accessed February 15, 2012, 14:09. |