| APA | E4GR. (2012, February 17). In Acronym Geek. Retrieved 07:55, February 17, 2012, from http://www.acronymgeek.com/E4GR |
| MLA | "E4GR." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/E4GR>. |
| MHRA | 'E4GR', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/E4GR> [accessed 17 February 2012] |
| Chicago | "E4GR", http://www.acronymgeek.com/E4GR (accessed February 17, 2012). |
| CBE/CSE | E4GR [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/E4GR. |
| Bluebook | E4GR, http://www.acronymgeek.com/E4GR (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, E4GR, http://www.acronymgeek.com/E4GR (optional description here) (as of Feb. 17, 2012, 07:55). |
| AMA | E4GR. Acronym Geek. February 17, 2012, 07:55. Available at: http://www.acronymgeek.com/E4GR. Accessed February 17, 2012, 07:55. |