| APA | ERTW. (2012, February 14). In Acronym Geek. Retrieved 14:47, February 14, 2012, from http://www.acronymgeek.com/ERTW |
| MLA | "ERTW." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ERTW>. |
| MHRA | 'ERTW', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ERTW> [accessed 14 February 2012] |
| Chicago | "ERTW", http://www.acronymgeek.com/ERTW (accessed February 14, 2012). |
| CBE/CSE | ERTW [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ERTW. |
| Bluebook | ERTW, http://www.acronymgeek.com/ERTW (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ERTW, http://www.acronymgeek.com/ERTW (optional description here) (as of Feb. 14, 2012, 14:47). |
| AMA | ERTW. Acronym Geek. February 14, 2012, 14:47. Available at: http://www.acronymgeek.com/ERTW. Accessed February 14, 2012, 14:47. |