| APA | EI&A. (2012, February 12). In Acronym Geek. Retrieved 13:20, February 12, 2012, from http://www.acronymgeek.com/EI&A |
| MLA | "EI&A." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/EI&A>. |
| MHRA | 'EI&A', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/EI&A> [accessed 12 February 2012] |
| Chicago | "EI&A", http://www.acronymgeek.com/EI&A (accessed February 12, 2012). |
| CBE/CSE | EI&A [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/EI&A. |
| Bluebook | EI&A, http://www.acronymgeek.com/EI&A (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EI&A, http://www.acronymgeek.com/EI&A (optional description here) (as of Feb. 12, 2012, 13:20). |
| AMA | EI&A. Acronym Geek. February 12, 2012, 13:20. Available at: http://www.acronymgeek.com/EI&A. Accessed February 12, 2012, 13:20. |