| APA | NFL. (2012, February 9). In Acronym Geek. Retrieved 19:22, February 9, 2012, from http://www.acronymgeek.com/NFL |
| MLA | "NFL." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/NFL>. |
| MHRA | 'NFL', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/NFL> [accessed 9 February 2012] |
| Chicago | "NFL", http://www.acronymgeek.com/NFL (accessed February 9, 2012). |
| CBE/CSE | NFL [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/NFL. |
| Bluebook | NFL, http://www.acronymgeek.com/NFL (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NFL, http://www.acronymgeek.com/NFL (optional description here) (as of Feb. 9, 2012, 19:22). |
| AMA | NFL. Acronym Geek. February 9, 2012, 19:22. Available at: http://www.acronymgeek.com/NFL. Accessed February 9, 2012, 19:22. |