| APA | ERWE. (2012, February 16). In Acronym Geek. Retrieved 16:40, February 16, 2012, from http://www.acronymgeek.com/ERWE |
| MLA | "ERWE." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ERWE>. |
| MHRA | 'ERWE', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ERWE> [accessed 16 February 2012] |
| Chicago | "ERWE", http://www.acronymgeek.com/ERWE (accessed February 16, 2012). |
| CBE/CSE | ERWE [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ERWE. |
| Bluebook | ERWE, http://www.acronymgeek.com/ERWE (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ERWE, http://www.acronymgeek.com/ERWE (optional description here) (as of Feb. 16, 2012, 16:40). |
| AMA | ERWE. Acronym Geek. February 16, 2012, 16:40. Available at: http://www.acronymgeek.com/ERWE. Accessed February 16, 2012, 16:40. |