| APA | EOI. (2012, February 14). In Acronym Geek. Retrieved 19:16, February 14, 2012, from http://www.acronymgeek.com/EOI |
| MLA | "EOI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/EOI>. |
| MHRA | 'EOI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/EOI> [accessed 14 February 2012] |
| Chicago | "EOI", http://www.acronymgeek.com/EOI (accessed February 14, 2012). |
| CBE/CSE | EOI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/EOI. |
| Bluebook | EOI, http://www.acronymgeek.com/EOI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EOI, http://www.acronymgeek.com/EOI (optional description here) (as of Feb. 14, 2012, 19:16). |
| AMA | EOI. Acronym Geek. February 14, 2012, 19:16. Available at: http://www.acronymgeek.com/EOI. Accessed February 14, 2012, 19:16. |