| APA | EXPA. (2012, February 17). In Acronym Geek. Retrieved 02:20, February 17, 2012, from http://www.acronymgeek.com/EXPA |
| MLA | "EXPA." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/EXPA>. |
| MHRA | 'EXPA', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/EXPA> [accessed 17 February 2012] |
| Chicago | "EXPA", http://www.acronymgeek.com/EXPA (accessed February 17, 2012). |
| CBE/CSE | EXPA [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/EXPA. |
| Bluebook | EXPA, http://www.acronymgeek.com/EXPA (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EXPA, http://www.acronymgeek.com/EXPA (optional description here) (as of Feb. 17, 2012, 02:20). |
| AMA | EXPA. Acronym Geek. February 17, 2012, 02:20. Available at: http://www.acronymgeek.com/EXPA. Accessed February 17, 2012, 02:20. |