| APA | HEDR. (2012, February 14). In Acronym Geek. Retrieved 21:04, February 14, 2012, from http://www.acronymgeek.com/HEDR |
| MLA | "HEDR." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HEDR>. |
| MHRA | 'HEDR', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HEDR> [accessed 14 February 2012] |
| Chicago | "HEDR", http://www.acronymgeek.com/HEDR (accessed February 14, 2012). |
| CBE/CSE | HEDR [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HEDR. |
| Bluebook | HEDR, http://www.acronymgeek.com/HEDR (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HEDR, http://www.acronymgeek.com/HEDR (optional description here) (as of Feb. 14, 2012, 21:04). |
| AMA | HEDR. Acronym Geek. February 14, 2012, 21:04. Available at: http://www.acronymgeek.com/HEDR. Accessed February 14, 2012, 21:04. |