| APA | 2NDS. (2012, February 10). In Acronym Geek. Retrieved 13:10, February 10, 2012, from http://www.acronymgeek.com/2NDS |
| MLA | "2NDS." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/2NDS>. |
| MHRA | '2NDS', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/2NDS> [accessed 10 February 2012] |
| Chicago | "2NDS", http://www.acronymgeek.com/2NDS (accessed February 10, 2012). |
| CBE/CSE | 2NDS [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/2NDS. |
| Bluebook | 2NDS, http://www.acronymgeek.com/2NDS (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 2NDS, http://www.acronymgeek.com/2NDS (optional description here) (as of Feb. 10, 2012, 13:10). |
| AMA | 2NDS. Acronym Geek. February 10, 2012, 13:10. Available at: http://www.acronymgeek.com/2NDS. Accessed February 10, 2012, 13:10. |