| APA | HDYR. (2012, February 14). In Acronym Geek. Retrieved 08:50, February 14, 2012, from http://www.acronymgeek.com/HDYR |
| MLA | "HDYR." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HDYR>. |
| MHRA | 'HDYR', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HDYR> [accessed 14 February 2012] |
| Chicago | "HDYR", http://www.acronymgeek.com/HDYR (accessed February 14, 2012). |
| CBE/CSE | HDYR [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HDYR. |
| Bluebook | HDYR, http://www.acronymgeek.com/HDYR (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HDYR, http://www.acronymgeek.com/HDYR (optional description here) (as of Feb. 14, 2012, 08:50). |
| AMA | HDYR. Acronym Geek. February 14, 2012, 08:50. Available at: http://www.acronymgeek.com/HDYR. Accessed February 14, 2012, 08:50. |