| APA | ESNS. (2012, February 14). In Acronym Geek. Retrieved 22:33, February 14, 2012, from http://www.acronymgeek.com/ESNS |
| MLA | "ESNS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ESNS>. |
| MHRA | 'ESNS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ESNS> [accessed 14 February 2012] |
| Chicago | "ESNS", http://www.acronymgeek.com/ESNS (accessed February 14, 2012). |
| CBE/CSE | ESNS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ESNS. |
| Bluebook | ESNS, http://www.acronymgeek.com/ESNS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ESNS, http://www.acronymgeek.com/ESNS (optional description here) (as of Feb. 14, 2012, 22:33). |
| AMA | ESNS. Acronym Geek. February 14, 2012, 22:33. Available at: http://www.acronymgeek.com/ESNS. Accessed February 14, 2012, 22:33. |