| APA | NNP. (2012, February 10). In Acronym Geek. Retrieved 08:34, February 10, 2012, from http://www.acronymgeek.com/NNP |
| MLA | "NNP." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/NNP>. |
| MHRA | 'NNP', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/NNP> [accessed 10 February 2012] |
| Chicago | "NNP", http://www.acronymgeek.com/NNP (accessed February 10, 2012). |
| CBE/CSE | NNP [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/NNP. |
| Bluebook | NNP, http://www.acronymgeek.com/NNP (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNP, http://www.acronymgeek.com/NNP (optional description here) (as of Feb. 10, 2012, 08:34). |
| AMA | NNP. Acronym Geek. February 10, 2012, 08:34. Available at: http://www.acronymgeek.com/NNP. Accessed February 10, 2012, 08:34. |