| APA | HQS. (2012, February 13). In Acronym Geek. Retrieved 22:54, February 13, 2012, from http://www.acronymgeek.com/HQS |
| MLA | "HQS." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/HQS>. |
| MHRA | 'HQS', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/HQS> [accessed 13 February 2012] |
| Chicago | "HQS", http://www.acronymgeek.com/HQS (accessed February 13, 2012). |
| CBE/CSE | HQS [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/HQS. |
| Bluebook | HQS, http://www.acronymgeek.com/HQS (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HQS, http://www.acronymgeek.com/HQS (optional description here) (as of Feb. 13, 2012, 22:54). |
| AMA | HQS. Acronym Geek. February 13, 2012, 22:54. Available at: http://www.acronymgeek.com/HQS. Accessed February 13, 2012, 22:54. |