| APA | FDTD. (2012, February 15). In Acronym Geek. Retrieved 00:07, February 15, 2012, from http://www.acronymgeek.com/FDTD |
| MLA | "FDTD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/FDTD>. |
| MHRA | 'FDTD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/FDTD> [accessed 15 February 2012] |
| Chicago | "FDTD", http://www.acronymgeek.com/FDTD (accessed February 15, 2012). |
| CBE/CSE | FDTD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/FDTD. |
| Bluebook | FDTD, http://www.acronymgeek.com/FDTD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FDTD, http://www.acronymgeek.com/FDTD (optional description here) (as of Feb. 15, 2012, 00:07). |
| AMA | FDTD. Acronym Geek. February 15, 2012, 00:07. Available at: http://www.acronymgeek.com/FDTD. Accessed February 15, 2012, 00:07. |