| APA | 4X4. (2012, February 10). In Acronym Geek. Retrieved 17:08, February 10, 2012, from http://www.acronymgeek.com/4X4 |
| MLA | "4X4." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/4X4>. |
| MHRA | '4X4', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/4X4> [accessed 10 February 2012] |
| Chicago | "4X4", http://www.acronymgeek.com/4X4 (accessed February 10, 2012). |
| CBE/CSE | 4X4 [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/4X4. |
| Bluebook | 4X4, http://www.acronymgeek.com/4X4 (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 4X4, http://www.acronymgeek.com/4X4 (optional description here) (as of Feb. 10, 2012, 17:08). |
| AMA | 4X4. Acronym Geek. February 10, 2012, 17:08. Available at: http://www.acronymgeek.com/4X4. Accessed February 10, 2012, 17:08. |