| APA | QHO3. (2012, February 12). In Acronym Geek. Retrieved 07:14, February 12, 2012, from http://www.acronymgeek.com/QHO3 |
| MLA | "QHO3." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/QHO3>. |
| MHRA | 'QHO3', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/QHO3> [accessed 12 February 2012] |
| Chicago | "QHO3", http://www.acronymgeek.com/QHO3 (accessed February 12, 2012). |
| CBE/CSE | QHO3 [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/QHO3. |
| Bluebook | QHO3, http://www.acronymgeek.com/QHO3 (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QHO3, http://www.acronymgeek.com/QHO3 (optional description here) (as of Feb. 12, 2012, 07:14). |
| AMA | QHO3. Acronym Geek. February 12, 2012, 07:14. Available at: http://www.acronymgeek.com/QHO3. Accessed February 12, 2012, 07:14. |