| APA | EARO. (2012, February 17). In Acronym Geek. Retrieved 04:56, February 17, 2012, from http://www.acronymgeek.com/EARO |
| MLA | "EARO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/EARO>. |
| MHRA | 'EARO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/EARO> [accessed 17 February 2012] |
| Chicago | "EARO", http://www.acronymgeek.com/EARO (accessed February 17, 2012). |
| CBE/CSE | EARO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/EARO. |
| Bluebook | EARO, http://www.acronymgeek.com/EARO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EARO, http://www.acronymgeek.com/EARO (optional description here) (as of Feb. 17, 2012, 04:56). |
| AMA | EARO. Acronym Geek. February 17, 2012, 04:56. Available at: http://www.acronymgeek.com/EARO. Accessed February 17, 2012, 04:56. |