| APA | 6SD. (2012, February 15). In Acronym Geek. Retrieved 03:20, February 15, 2012, from http://www.acronymgeek.com/6SD |
| MLA | "6SD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/6SD>. |
| MHRA | '6SD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/6SD> [accessed 15 February 2012] |
| Chicago | "6SD", http://www.acronymgeek.com/6SD (accessed February 15, 2012). |
| CBE/CSE | 6SD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/6SD. |
| Bluebook | 6SD, http://www.acronymgeek.com/6SD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 6SD, http://www.acronymgeek.com/6SD (optional description here) (as of Feb. 15, 2012, 03:20). |
| AMA | 6SD. Acronym Geek. February 15, 2012, 03:20. Available at: http://www.acronymgeek.com/6SD. Accessed February 15, 2012, 03:20. |