| APA | E6. (2012, February 11). In Acronym Geek. Retrieved 21:55, February 11, 2012, from http://www.acronymgeek.com/E6 |
| MLA | "E6." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/E6>. |
| MHRA | 'E6', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/E6> [accessed 11 February 2012] |
| Chicago | "E6", http://www.acronymgeek.com/E6 (accessed February 11, 2012). |
| CBE/CSE | E6 [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/E6. |
| Bluebook | E6, http://www.acronymgeek.com/E6 (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, E6, http://www.acronymgeek.com/E6 (optional description here) (as of Feb. 11, 2012, 21:55). |
| AMA | E6. Acronym Geek. February 11, 2012, 21:55. Available at: http://www.acronymgeek.com/E6. Accessed February 11, 2012, 21:55. |