| APA | HRTG. (2012, February 15). In Acronym Geek. Retrieved 22:20, February 15, 2012, from http://www.acronymgeek.com/HRTG |
| MLA | "HRTG." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HRTG>. |
| MHRA | 'HRTG', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HRTG> [accessed 15 February 2012] |
| Chicago | "HRTG", http://www.acronymgeek.com/HRTG (accessed February 15, 2012). |
| CBE/CSE | HRTG [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HRTG. |
| Bluebook | HRTG, http://www.acronymgeek.com/HRTG (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HRTG, http://www.acronymgeek.com/HRTG (optional description here) (as of Feb. 15, 2012, 22:20). |
| AMA | HRTG. Acronym Geek. February 15, 2012, 22:20. Available at: http://www.acronymgeek.com/HRTG. Accessed February 15, 2012, 22:20. |