| APA | ENEA. (2012, February 15). In Acronym Geek. Retrieved 11:29, February 15, 2012, from http://www.acronymgeek.com/ENEA |
| MLA | "ENEA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ENEA>. |
| MHRA | 'ENEA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ENEA> [accessed 15 February 2012] |
| Chicago | "ENEA", http://www.acronymgeek.com/ENEA (accessed February 15, 2012). |
| CBE/CSE | ENEA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ENEA. |
| Bluebook | ENEA, http://www.acronymgeek.com/ENEA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ENEA, http://www.acronymgeek.com/ENEA (optional description here) (as of Feb. 15, 2012, 11:29). |
| AMA | ENEA. Acronym Geek. February 15, 2012, 11:29. Available at: http://www.acronymgeek.com/ENEA. Accessed February 15, 2012, 11:29. |