| APA | RTHI. (2012, February 16). In Acronym Geek. Retrieved 19:27, February 16, 2012, from http://www.acronymgeek.com/RTHI |
| MLA | "RTHI." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/RTHI>. |
| MHRA | 'RTHI', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/RTHI> [accessed 16 February 2012] |
| Chicago | "RTHI", http://www.acronymgeek.com/RTHI (accessed February 16, 2012). |
| CBE/CSE | RTHI [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/RTHI. |
| Bluebook | RTHI, http://www.acronymgeek.com/RTHI (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, RTHI, http://www.acronymgeek.com/RTHI (optional description here) (as of Feb. 16, 2012, 19:27). |
| AMA | RTHI. Acronym Geek. February 16, 2012, 19:27. Available at: http://www.acronymgeek.com/RTHI. Accessed February 16, 2012, 19:27. |