| APA | SO, SO2D. (2012, February 12). In Acronym Geek. Retrieved 14:06, February 12, 2012, from http://www.acronymgeek.com/SO, SO2D |
| MLA | "SO, SO2D." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/SO, SO2D>. |
| MHRA | 'SO, SO2D', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/SO, SO2D> [accessed 12 February 2012] |
| Chicago | "SO, SO2D", http://www.acronymgeek.com/SO, SO2D (accessed February 12, 2012). |
| CBE/CSE | SO, SO2D [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/SO, SO2D. |
| Bluebook | SO, SO2D, http://www.acronymgeek.com/SO, SO2D (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SO, SO2D, http://www.acronymgeek.com/SO, SO2D (optional description here) (as of Feb. 12, 2012, 14:06). |
| AMA | SO, SO2D. Acronym Geek. February 12, 2012, 14:06. Available at: http://www.acronymgeek.com/SO, SO2D. Accessed February 12, 2012, 14:06. |