| APA | ESAN. (2012, February 14). In Acronym Geek. Retrieved 00:38, February 14, 2012, from http://www.acronymgeek.com/ESAN |
| MLA | "ESAN." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ESAN>. |
| MHRA | 'ESAN', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ESAN> [accessed 14 February 2012] |
| Chicago | "ESAN", http://www.acronymgeek.com/ESAN (accessed February 14, 2012). |
| CBE/CSE | ESAN [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ESAN. |
| Bluebook | ESAN, http://www.acronymgeek.com/ESAN (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ESAN, http://www.acronymgeek.com/ESAN (optional description here) (as of Feb. 14, 2012, 00:38). |
| AMA | ESAN. Acronym Geek. February 14, 2012, 00:38. Available at: http://www.acronymgeek.com/ESAN. Accessed February 14, 2012, 00:38. |