| APA | ER,D. (2012, February 12). In Acronym Geek. Retrieved 13:21, February 12, 2012, from http://www.acronymgeek.com/ER,D |
| MLA | "ER,D." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/ER,D>. |
| MHRA | 'ER,D', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/ER,D> [accessed 12 February 2012] |
| Chicago | "ER,D", http://www.acronymgeek.com/ER,D (accessed February 12, 2012). |
| CBE/CSE | ER,D [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/ER,D. |
| Bluebook | ER,D, http://www.acronymgeek.com/ER,D (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ER,D, http://www.acronymgeek.com/ER,D (optional description here) (as of Feb. 12, 2012, 13:21). |
| AMA | ER,D. Acronym Geek. February 12, 2012, 13:21. Available at: http://www.acronymgeek.com/ER,D. Accessed February 12, 2012, 13:21. |