| APA | NDA. (2012, February 14). In Acronym Geek. Retrieved 10:34, February 14, 2012, from http://www.acronymgeek.com/NDA |
| MLA | "NDA." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/NDA>. |
| MHRA | 'NDA', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/NDA> [accessed 14 February 2012] |
| Chicago | "NDA", http://www.acronymgeek.com/NDA (accessed February 14, 2012). |
| CBE/CSE | NDA [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/NDA. |
| Bluebook | NDA, http://www.acronymgeek.com/NDA (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NDA, http://www.acronymgeek.com/NDA (optional description here) (as of Feb. 14, 2012, 10:34). |
| AMA | NDA. Acronym Geek. February 14, 2012, 10:34. Available at: http://www.acronymgeek.com/NDA. Accessed February 14, 2012, 10:34. |