| APA | NDIR. (2012, February 15). In Acronym Geek. Retrieved 10:05, February 15, 2012, from http://www.acronymgeek.com/NDIR |
| MLA | "NDIR." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NDIR>. |
| MHRA | 'NDIR', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NDIR> [accessed 15 February 2012] |
| Chicago | "NDIR", http://www.acronymgeek.com/NDIR (accessed February 15, 2012). |
| CBE/CSE | NDIR [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NDIR. |
| Bluebook | NDIR, http://www.acronymgeek.com/NDIR (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NDIR, http://www.acronymgeek.com/NDIR (optional description here) (as of Feb. 15, 2012, 10:05). |
| AMA | NDIR. Acronym Geek. February 15, 2012, 10:05. Available at: http://www.acronymgeek.com/NDIR. Accessed February 15, 2012, 10:05. |