| APA | USAN. (2012, February 15). In Acronym Geek. Retrieved 05:30, February 15, 2012, from http://www.acronymgeek.com/USAN |
| MLA | "USAN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/USAN>. |
| MHRA | 'USAN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/USAN> [accessed 15 February 2012] |
| Chicago | "USAN", http://www.acronymgeek.com/USAN (accessed February 15, 2012). |
| CBE/CSE | USAN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/USAN. |
| Bluebook | USAN, http://www.acronymgeek.com/USAN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, USAN, http://www.acronymgeek.com/USAN (optional description here) (as of Feb. 15, 2012, 05:30). |
| AMA | USAN. Acronym Geek. February 15, 2012, 05:30. Available at: http://www.acronymgeek.com/USAN. Accessed February 15, 2012, 05:30. |