| APA | U.S.. (2012, February 17). In Acronym Geek. Retrieved 00:49, February 17, 2012, from http://www.acronymgeek.com/U.S. |
| MLA | "U.S.." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/U.S.>. |
| MHRA | 'U.S.', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/U.S.> [accessed 17 February 2012] |
| Chicago | "U.S.", http://www.acronymgeek.com/U.S. (accessed February 17, 2012). |
| CBE/CSE | U.S. [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/U.S.. |
| Bluebook | U.S., http://www.acronymgeek.com/U.S. (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, U.S., http://www.acronymgeek.com/U.S. (optional description here) (as of Feb. 17, 2012, 00:49). |
| AMA | U.S.. Acronym Geek. February 17, 2012, 00:49. Available at: http://www.acronymgeek.com/U.S.. Accessed February 17, 2012, 00:49. |