| APA | QHY. (2012, February 14). In Acronym Geek. Retrieved 20:39, February 14, 2012, from http://www.acronymgeek.com/QHY |
| MLA | "QHY." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/QHY>. |
| MHRA | 'QHY', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/QHY> [accessed 14 February 2012] |
| Chicago | "QHY", http://www.acronymgeek.com/QHY (accessed February 14, 2012). |
| CBE/CSE | QHY [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/QHY. |
| Bluebook | QHY, http://www.acronymgeek.com/QHY (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QHY, http://www.acronymgeek.com/QHY (optional description here) (as of Feb. 14, 2012, 20:39). |
| AMA | QHY. Acronym Geek. February 14, 2012, 20:39. Available at: http://www.acronymgeek.com/QHY. Accessed February 14, 2012, 20:39. |