| APA | ER&S. (2012, February 12). In Acronym Geek. Retrieved 08:38, February 12, 2012, from http://www.acronymgeek.com/ER&S |
| MLA | "ER&S." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/ER&S>. |
| MHRA | 'ER&S', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/ER&S> [accessed 12 February 2012] |
| Chicago | "ER&S", http://www.acronymgeek.com/ER&S (accessed February 12, 2012). |
| CBE/CSE | ER&S [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/ER&S. |
| Bluebook | ER&S, http://www.acronymgeek.com/ER&S (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ER&S, http://www.acronymgeek.com/ER&S (optional description here) (as of Feb. 12, 2012, 08:38). |
| AMA | ER&S. Acronym Geek. February 12, 2012, 08:38. Available at: http://www.acronymgeek.com/ER&S. Accessed February 12, 2012, 08:38. |