| APA | ERW. (2012, February 10). In Acronym Geek. Retrieved 11:02, February 10, 2012, from http://www.acronymgeek.com/ERW |
| MLA | "ERW." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/ERW>. |
| MHRA | 'ERW', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/ERW> [accessed 10 February 2012] |
| Chicago | "ERW", http://www.acronymgeek.com/ERW (accessed February 10, 2012). |
| CBE/CSE | ERW [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/ERW. |
| Bluebook | ERW, http://www.acronymgeek.com/ERW (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ERW, http://www.acronymgeek.com/ERW (optional description here) (as of Feb. 10, 2012, 11:02). |
| AMA | ERW. Acronym Geek. February 10, 2012, 11:02. Available at: http://www.acronymgeek.com/ERW. Accessed February 10, 2012, 11:02. |