| APA | E2F. (2012, February 14). In Acronym Geek. Retrieved 07:33, February 14, 2012, from http://www.acronymgeek.com/E2F |
| MLA | "E2F." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/E2F>. |
| MHRA | 'E2F', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/E2F> [accessed 14 February 2012] |
| Chicago | "E2F", http://www.acronymgeek.com/E2F (accessed February 14, 2012). |
| CBE/CSE | E2F [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/E2F. |
| Bluebook | E2F, http://www.acronymgeek.com/E2F (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, E2F, http://www.acronymgeek.com/E2F (optional description here) (as of Feb. 14, 2012, 07:33). |
| AMA | E2F. Acronym Geek. February 14, 2012, 07:33. Available at: http://www.acronymgeek.com/E2F. Accessed February 14, 2012, 07:33. |