| APA | STDA. (2012, February 16). In Acronym Geek. Retrieved 00:43, February 16, 2012, from http://www.acronymgeek.com/STDA |
| MLA | "STDA." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/STDA>. |
| MHRA | 'STDA', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/STDA> [accessed 16 February 2012] |
| Chicago | "STDA", http://www.acronymgeek.com/STDA (accessed February 16, 2012). |
| CBE/CSE | STDA [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/STDA. |
| Bluebook | STDA, http://www.acronymgeek.com/STDA (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, STDA, http://www.acronymgeek.com/STDA (optional description here) (as of Feb. 16, 2012, 00:43). |
| AMA | STDA. Acronym Geek. February 16, 2012, 00:43. Available at: http://www.acronymgeek.com/STDA. Accessed February 16, 2012, 00:43. |