| APA | NPDQ. (2012, February 14). In Acronym Geek. Retrieved 17:13, February 14, 2012, from http://www.acronymgeek.com/NPDQ |
| MLA | "NPDQ." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/NPDQ>. |
| MHRA | 'NPDQ', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/NPDQ> [accessed 14 February 2012] |
| Chicago | "NPDQ", http://www.acronymgeek.com/NPDQ (accessed February 14, 2012). |
| CBE/CSE | NPDQ [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/NPDQ. |
| Bluebook | NPDQ, http://www.acronymgeek.com/NPDQ (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NPDQ, http://www.acronymgeek.com/NPDQ (optional description here) (as of Feb. 14, 2012, 17:13). |
| AMA | NPDQ. Acronym Geek. February 14, 2012, 17:13. Available at: http://www.acronymgeek.com/NPDQ. Accessed February 14, 2012, 17:13. |