| APA | ER&D. (2012, February 10). In Acronym Geek. Retrieved 10:31, February 10, 2012, from http://www.acronymgeek.com/ER&D |
| MLA | "ER&D." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/ER&D>. |
| MHRA | 'ER&D', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/ER&D> [accessed 10 February 2012] |
| Chicago | "ER&D", http://www.acronymgeek.com/ER&D (accessed February 10, 2012). |
| CBE/CSE | ER&D [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/ER&D. |
| Bluebook | ER&D, http://www.acronymgeek.com/ER&D (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ER&D, http://www.acronymgeek.com/ER&D (optional description here) (as of Feb. 10, 2012, 10:31). |
| AMA | ER&D. Acronym Geek. February 10, 2012, 10:31. Available at: http://www.acronymgeek.com/ER&D. Accessed February 10, 2012, 10:31. |