| APA | EO/IR. (2012, February 12). In Acronym Geek. Retrieved 11:16, February 12, 2012, from http://www.acronymgeek.com/EO/IR |
| MLA | "EO/IR." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/EO/IR>. |
| MHRA | 'EO/IR', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/EO/IR> [accessed 12 February 2012] |
| Chicago | "EO/IR", http://www.acronymgeek.com/EO/IR (accessed February 12, 2012). |
| CBE/CSE | EO/IR [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/EO/IR. |
| Bluebook | EO/IR, http://www.acronymgeek.com/EO/IR (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EO/IR, http://www.acronymgeek.com/EO/IR (optional description here) (as of Feb. 12, 2012, 11:16). |
| AMA | EO/IR. Acronym Geek. February 12, 2012, 11:16. Available at: http://www.acronymgeek.com/EO/IR. Accessed February 12, 2012, 11:16. |