| APA | QOA. (2012, February 13). In Acronym Geek. Retrieved 21:49, February 13, 2012, from http://www.acronymgeek.com/QOA |
| MLA | "QOA." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/QOA>. |
| MHRA | 'QOA', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/QOA> [accessed 13 February 2012] |
| Chicago | "QOA", http://www.acronymgeek.com/QOA (accessed February 13, 2012). |
| CBE/CSE | QOA [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/QOA. |
| Bluebook | QOA, http://www.acronymgeek.com/QOA (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QOA, http://www.acronymgeek.com/QOA (optional description here) (as of Feb. 13, 2012, 21:49). |
| AMA | QOA. Acronym Geek. February 13, 2012, 21:49. Available at: http://www.acronymgeek.com/QOA. Accessed February 13, 2012, 21:49. |