| APA | EIWS. (2012, February 11). In Acronym Geek. Retrieved 20:35, February 11, 2012, from http://www.acronymgeek.com/EIWS |
| MLA | "EIWS." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/EIWS>. |
| MHRA | 'EIWS', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/EIWS> [accessed 11 February 2012] |
| Chicago | "EIWS", http://www.acronymgeek.com/EIWS (accessed February 11, 2012). |
| CBE/CSE | EIWS [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/EIWS. |
| Bluebook | EIWS, http://www.acronymgeek.com/EIWS (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EIWS, http://www.acronymgeek.com/EIWS (optional description here) (as of Feb. 11, 2012, 20:35). |
| AMA | EIWS. Acronym Geek. February 11, 2012, 20:35. Available at: http://www.acronymgeek.com/EIWS. Accessed February 11, 2012, 20:35. |