| APA | HDQE. (2012, February 15). In Acronym Geek. Retrieved 23:30, February 15, 2012, from http://www.acronymgeek.com/HDQE |
| MLA | "HDQE." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HDQE>. |
| MHRA | 'HDQE', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HDQE> [accessed 15 February 2012] |
| Chicago | "HDQE", http://www.acronymgeek.com/HDQE (accessed February 15, 2012). |
| CBE/CSE | HDQE [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HDQE. |
| Bluebook | HDQE, http://www.acronymgeek.com/HDQE (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HDQE, http://www.acronymgeek.com/HDQE (optional description here) (as of Feb. 15, 2012, 23:30). |
| AMA | HDQE. Acronym Geek. February 15, 2012, 23:30. Available at: http://www.acronymgeek.com/HDQE. Accessed February 15, 2012, 23:30. |