| APA | HRYG. (2012, February 17). In Acronym Geek. Retrieved 07:10, February 17, 2012, from http://www.acronymgeek.com/HRYG |
| MLA | "HRYG." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HRYG>. |
| MHRA | 'HRYG', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HRYG> [accessed 17 February 2012] |
| Chicago | "HRYG", http://www.acronymgeek.com/HRYG (accessed February 17, 2012). |
| CBE/CSE | HRYG [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HRYG. |
| Bluebook | HRYG, http://www.acronymgeek.com/HRYG (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HRYG, http://www.acronymgeek.com/HRYG (optional description here) (as of Feb. 17, 2012, 07:10). |
| AMA | HRYG. Acronym Geek. February 17, 2012, 07:10. Available at: http://www.acronymgeek.com/HRYG. Accessed February 17, 2012, 07:10. |