| APA | ERWA. (2012, February 16). In Acronym Geek. Retrieved 20:34, February 16, 2012, from http://www.acronymgeek.com/ERWA |
| MLA | "ERWA." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ERWA>. |
| MHRA | 'ERWA', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ERWA> [accessed 16 February 2012] |
| Chicago | "ERWA", http://www.acronymgeek.com/ERWA (accessed February 16, 2012). |
| CBE/CSE | ERWA [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ERWA. |
| Bluebook | ERWA, http://www.acronymgeek.com/ERWA (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ERWA, http://www.acronymgeek.com/ERWA (optional description here) (as of Feb. 16, 2012, 20:34). |
| AMA | ERWA. Acronym Geek. February 16, 2012, 20:34. Available at: http://www.acronymgeek.com/ERWA. Accessed February 16, 2012, 20:34. |