| APA | EF-1DELTA. (2012, February 12). In Acronym Geek. Retrieved 13:46, February 12, 2012, from http://www.acronymgeek.com/EF-1DELTA |
| MLA | "EF-1DELTA." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/EF-1DELTA>. |
| MHRA | 'EF-1DELTA', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/EF-1DELTA> [accessed 12 February 2012] |
| Chicago | "EF-1DELTA", http://www.acronymgeek.com/EF-1DELTA (accessed February 12, 2012). |
| CBE/CSE | EF-1DELTA [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/EF-1DELTA. |
| Bluebook | EF-1DELTA, http://www.acronymgeek.com/EF-1DELTA (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EF-1DELTA, http://www.acronymgeek.com/EF-1DELTA (optional description here) (as of Feb. 12, 2012, 13:46). |
| AMA | EF-1DELTA. Acronym Geek. February 12, 2012, 13:46. Available at: http://www.acronymgeek.com/EF-1DELTA. Accessed February 12, 2012, 13:46. |